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=2-x+y
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How do you find slope when only one x and y values are given?
Add x and y then Divide by the postulate, subtract 7, add 13, then divide by 3.
Why does the sign in an inequality change when you divide by a negative?
Let's try an example: 2 < 4 divide both sides by -2 and you get: -1 < -2 which is clearly false. Another example: -4 < -2 divide both sides by -2 and you get: 2 < 1 which is again false. Here is a simple proof: Assume x < y Then subtract y from both sides: x - y < 0 Now subtract x from both sides: -y < -x which is the same is -x > -y Summarizing: x < y implies that -x > -y.
What two numbers equal 33 when you add them and 9 when you subtract them?
42
How do you solve x equals y plus 2 divided by y-3 for y?
-1
How do you turn 3x-6y equals 12 in slope intercept form?
3x-6y=12; subtract 12 & add 6y to both sides 3x-12=6y; divide by 6 (1/2)x-2=y; re-write y=(1/2)x-2 slope intercept form
Solve x equal 2y and y equal x minus 2?
x = 2y y = x - 2 or x = 2y subtract 2y to both sides x - 2 = y subtract y and add 2 to both sides x - 2y = 0 multiply by -1 to both sides x - y = 2 -x + 2y = 0 x - y = 2 add these two equations together y = 2 substitute 2 for y into the first equation, x = 2y x = 2(2) = 4 Thus the solution of these linear system of equations is the point (4, 2). Check:
What is x plus y mulitplied by x subtract y equal?
(x^2 - y^2)
How would you write subtract the sum of 2 and y from x?
x - (y + 2)
What kind of transformation would add 4 to the x-values of every point in a shape and subtract 2 from the y values of every point in a shape?
The transformation from y = f(x) to y = f(x - 4) - 2
How do you find slope when only one x and y values are given?
Add x and y then Divide by the postulate, subtract 7, add 13, then divide by 3.
What is x equals -y plus 3 converted into y intercept form?
X = -Y + 3 add Y to each side Y + X = 3 subtract X from each side Y = -X + 3
How do you make y the subject of x-2y equals 4?
x - 2y = 4 Add 2y to both sides: x = 4 + 2y Subtract 4 from both sides: x - 4 = 2y Divide both sides by 2: (x - 4)/2 = y or y = 0.5x - 2
How do you solve x plus y equals 10 and x subtract y equals 2 by elimination?
12
What is a horizontal shift formula?
Generally, in order to shift a function horizontally you must add or subtract to x- add to move it to the left, subtract to move it to the right. For example: y = 5x shifted left by 1 y = 5(x + 1) y2 + x2 = 4 shifted right by 3 y2 + (x - 3)2 = 4
What happens to the graph of y equals x when the equation changes to y equals x 9?
The line y = x will shift up when you add a value to x and shift down when you subtract a value from x.
What two numbers add up to 33 and when you subtract them they equal 15?
48
What do you get when you add a with a?
(-x) + (-y) = -(x + y) Example: x = 2, y = 3 -2 + -3 = -5
