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How do you graph x -5 on a number line?
If you know the value of x then the answer is the point 5 units to the left of that value. If you do not know the value of x then the answer is the whole of the number line.
Why is place value useful?
So you know where each digit goes in a number.
Where does the decimal point go in 673?
You need to know what the value is. If the number is 67 and a bit then 67.3 If the number is 673 millionths, then 0.000673
How do you see how many point each question is on test?
You cannot know that. If you are told the total number of points for the test, you know (or count) the number of questions and you are told that each question is worth the same number of points then, and only then, each question is worth (total points/number of questions) points.
What is your grade if you get 3 wrong on a 80 question test?
To calculate your grade, you need to know how much each question is worth. If each question is worth the same, you can divide the number of correct answers (80 - 3 = 77) by the total number of questions (80) and multiply by 100 to get a percentage. If each question is worth different points, you'll need to know the point value of each question to calculate your grade.
What is the value of a Winchester 94 serial number 1700923?
Don't know but it was made in 1950 and that might give you a starting point. Value depends almost totally on the condition of the gun.
You wish to know the value of your policy?
My policy number is L1205763. What is the value?
In ordered pair the second number is always the value of y?
Yes and no. In two-dimensional Cartesian coordinates, the answer is usually yes. So the point (4,7) has x value 4 and y value 7. But there are other uses for ordered pairs. For example in polar coordinates a point is specified by an ordered pair (r, theta), and the second number is an angle. You need to know what context you are working in.
What is the slope of a curve line?
The slope of a curved line changes as you go along the curve and so you may have a different slope at each point. Any any particular point, the slope of the curve is the slope of the straight line which is tangent to the curve at that point. If you know differential calculus, the slope of a curved line at a point is the value of the first derivative of the equation of the curve at that point. (Actually, even if you don't know differential calculus, the slope is still the value of the function's first derivative at that point.)
How do you know if a point is a solution to a system of equations?
The coordinates of the point satisfy each of the equations.
Why is it useful for me to know the absolute value of a number?
The absolute value of a number is the distance to zero. When adding which ever number has the greater absolute value will determine the sign of the answer.
How do you evaluate an algebraic expression when I know the value of each variable?
Replace each variables in the algebraic expression by its [known] value and calculate the value (ie evaluate) of the algebraic expression.
