Test - TCAP Success Grade 8 MATH Chapter 8

1 pt

Tell which description of the function is true.

The function is nonlinear and always decreasing.

It is not a function.

The function is decreasing from –2 to negative infinity and increasing from –2 to infinity.

The function is decreasing from –2 to –4 and increasing from –2 to 4.

1 pt

Which equation represents a function with a rate of change that is greater than the one shown in the graph below?

$y = - 2 x + 7$

$y = \frac{x}{2 - 3}$

$y = \frac{3}{4} x + 4$

$y = 3 x - 7$

1 pt

Which equation is linear?

$y = \frac{1}{2} x + 5$

$y = \frac{1}{2 x} x + 2$

$y = 2 - x^{2}$

$y = 5 - x^{2}$

1 pt

Which table represents a linear function?

1 pt

Compare the rates of change for the functions represented below.

Which statements about the rates of change for Function C and Function D are true? Select all true statements.

Function D has a greater rate of change because it has a positive rate of change, and function C does not.

Function C has a greater rate of change because it has a positive rate of change, and function D does not.

Functions C and D have the same positive rate of change.

Functions C and D have the same negative rate of change.

The y-intercept of function D is equal to the y-intercept of function C.

The y-value when x = 0 for function C is greater than the y-value when x = 0 for Function D.

TCAP Success Grade 8 MATH Chapter 8