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The following questions will provide practice working with simple linear functions. All questions refer to a...

The following questions will provide practice working with simple linear functions. All questions refer to a coordinate graph with the variable X on the horizontal axis and the variable Y on the vertical axis. a. If two points on a straight line are (X = 3, Y = 2) and (X = 12, Y = 5), what is the slope of the line?

b. If point A is at (X = 20, Y = 20) and point B is at (X = 10, Y = 40), what is the slope of the straight-line joining points A and B?

c. What is the slope of the function described by Y = 12000 – 0.5X?

d. What is the slope of a line described by Y = 6.5X?

e. What is the slope of a line described by Y = 27 + 3.2X?

f. What is the Y-intercept of the function Y = 500 + mX?

g. What is the Y-intercept of the function Y = -100 + 10X?

h. What is the X-intercept of the function Y = 10 – 0.1X?

i. What is the X-intercept of the function Y = -1 + 2X?

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