4/12 STAAR REVIEW

6. The graph of a linear function is shown on the grid.

What is the rate of change of y with respect to x for this function?

7. The tables of ordered pairs represent some points on the graphs of lines f and g. Which system of equations represents lines f and g?

• x = -12

• x = -4

• x = -2

• x = -6

9. A conservation agency tracks the sea turtle population by counting the number of nesting sites where the turtles lay their eggs. The table shows the numbers of nesting sites for several years since 2001. The data can be modeled by an exponential function. Which function best models the data?

10. What is the equation in standard form of the line that passes through the point (6, −1) and is parallel to the line represented by 8x + 3y = 15?

• 8x + 3y = -45

• 8x − 3y = −51

• 8x + 3y = 45

• 8x − 3y = 51

• (x + 9)(2x + 7)

• (x − 9)(2x − 7)

• (x + 7)(2x + 9)

• (x − 7)(2x − 9)