Rate of Change and Direct Variation

What kind of slope does the graph have?

• positive

• negative

• undefined

• 0-slope

What is the x-intercept of the graph?

• 4

• 6

• $-6$

• $-4$

What is the rate of change of the table?

• 1.5

• 2.5

• 3.5

• 4.5

What is the y-intercept of the graph?

What is the rate of change of the table?

• $-10$

• $17$

• $-17$

• $10$

The value of y is directly proportional to x. When x = 4, the value of y = 36. What is the value of y when x is 1?

• 9

• 18

• 23

• 33

Check all direct variation functions.

• $y=0.5x$

• $y=8x-3$

• $y=\frac{3}{4}x$

• $y=6x$

What is the domain of the graph?

• $x\le3$

• $x\ge3$

• all real numbers

• $0\le x\le6$

Which function represents the table?

• $y=\frac{5}{2}x-3$

• $y=-\frac{5}{2}x-3$

• $y=\frac{5}{2}x+3$

• $y=-\frac{5}{2}x+3$

What is the slope of the line graphed?

• $-1$

• $-\frac{3}{2}$

• $-\frac{2}{3}$

• $\frac{3}{2}$