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What is the inverse of fx 3 x 2ex-2 I know you have to swap the x and y around but what happens when you have y ey-2?
Wiki User
∙ 15y ago
Your question is not clear. I need to know the function in order to find its inverse. What is your function?
Here is a simple example.
Find the inverse of f(x) = 7x - 5
f(x) = 7x - 5 Replace f(x) = y
y = 7x - 5 Interchange x and y
x = 7y - 5 Solve for y
x + 5 = 7y
(x + 5)/7 = y Replace y with f^-1(x)
(x+5)/7 = f^-1(x)
f^-1(x) = (x + 5)/7 is the inverse of f(x) = 7x - 5
Wiki User
∙ 15y ago
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What is the inverse function of xx?
XX or X*X, can be written as X squared. The inverse of a function "sort of cancels it out". I know the inverse of a square is the square root. Since we need the inverse of X squared, it's inverse is the square root of X. sqrt(x)
What is the Inverse Property of Subtraction?
Generally there are only two inverse properties. The inverse property of addition, also known as the additive inverse property, and the inverse property of multiplication, also known as the multiplicative inverse property. The additive inverse property for say the the integer -5 (integer is a fancy word for number) is the same number but with the opposite sign. So if you are asked to find the additive inverse for -5 it is asking you to find it's opposite. So the what is the opposite of -5? +5, also written as just plain old 5 without the + sign! If you are asked to find the additive inverse of 5 what would you write? -5 of course! If you are asked to state in words and numbers the definition of the additive inverse property you would say that "the additive inverse property states that -a+a=0=a+-a". Here is another example. Say you are asked "what number can be used to make the following equation true? -5+?=0". What is the inverse of -5? 5 of course. So -5+5=0! ****If you know how to add/subtract positive and negative integers**** The inverse properties deal with negatives and positive integers. If you don't know how to add or subtract and divide and multiply negative and positive integers you should really learn to help you to better understand inverse properties. If you have studied integers then you know there cannot really be a inverse property of subtraction because the rule for subtracting integers is "Keep, Change, Change". Technically there can be a inverse subtraction property because ( -5)-5=0=(-5)5=0 BUT 5-(-5)=0=5+5 is false because 5+5=10 not 0! When subtracting integers the Keep, Change, Change rule means that if you were given the problem 5-(-5) you would KEEP the first number and sign exactly the same but CHANGE the sign, the minus sign, to a plus sign and then CHANGE the second number (in this case -5) to it's opposite. This changing the second number, (-5), is inverting it to it's opposite (5). So there can technically be a inverse subtraction property but it would be one that isn't reliable in making an equation true because depending on how the numbers are arranged you could get a completely different answer then you would if the numbers were arranged a different way. ( -5)-5=0=(-5)5=0 BUT 5-(-5)=0=5+5 is false because 5+5=10 not 0! But with addition (-5)+5 is the same as 5+(-5) making the following equation true: (-5)+5=0=5+(-5). I know this is a lot of reading to do but it really is quite simple. I was never any good at math but if I can do it so can you! It may be helpful to learn about integers before you learn about properties. This is found in the pre-algebra section. I hope this does some good for you. Xoxo
What do you use to isolate a variable in an equation?
You would use inverse operations. I had this on my math homework and got it correct so I know this! ============================================== Good for you ! You know what you said, but you don't know what you know. I'd say that you use the Golden Law: "You must always do exactly the same thing to both sides of an equation."
What is the inverse of 2x-8?
y = x² - 2x - 8 Swap x and y to find the inverse: x = y² - 2y - 8 Now get y by itself: y² - 2y = x + 8 (Complete the square): y² - 2y + 1 = x + 9 (y - 1)² = x + 9 y - 1 = ±√(x + 9) y = 1 ±√(x + 9) Then there are two functions: f(x) = 1 - √(x + 9) and f(x) = 1 + √(x + 9) but an inverse can only be one function. The functions above are a mirror image of the original function, but it is not an inverse (graph these functions). There is no inverse. Everything above is completely wrong. This is the inverse: (x+8)/2 I don't know where the x² came from in the first answer, but to work out the question as asked: if y=2x-8 y+8 = 2x (y+8)/2 = x so, as the above answer stated, (x+8)/2 is the answer.
Which of the following is an example of why irrational numbers are not closed under addition?
Don't know about the "following" but any irrational added to its additive inverse is 0, which is rational. Therefore, the set of irrationals is not closed under addition.
What is the inverse function of xx?
XX or X*X, can be written as X squared. The inverse of a function "sort of cancels it out". I know the inverse of a square is the square root. Since we need the inverse of X squared, it's inverse is the square root of X. sqrt(x)
What do you know about direct proportion and inverse proportion?
direct proportion: y=kx inverse proportion: y=k/x
What are the 2 kinds of variation?
well there are surely two types of variations... anyone by chance happens to know the third kind, please let me know two types of variations- 1] direct variation 2] inverse variation
Does zero has an opposite?
i don't know so don't look at this answer * * * * * Zero has no multiplicative opposite (or inverse), but it has an additive inverse, and that is also zero, since 0 + 0 = 0
What is additive inverse and a additive identity?
additive inverse is when in an equation there is a plus zero. you automatically know that anything plus 0 is still that number, so that is additive identity.
What are the mathematical terms that mean opposite of?
Inverse There could be more, but that's the one I know.
What is the variation constant for an inverse squared relationship where we know x-4 and y3?
9
How can number senses help to know if you have subracted two mixed number correctly?
if you know the operation of your number you can do inverse operation
Why do I pee a little when I get up and walk around during my period?
I dont know but it happens to me😳
How do you do linear equations?
To solve linear equations, you always use the inverse operations
What is the relationship between density and surface tension?
as we know the relation between surface tension and temperature is inverse, and that of temperature and density also has inverse proportion, then it is clear that the '''surface tension is directly proportion to the density'''.
What does inverse property of addition means?
jump!!! on your math >.> hmm inverse is the opposite so I'm assumeing the inverse property means the opposite of the number and any number plus it's opposite equals 0, as for the multiplication. ta heck if i know i sleep all day during math
