Suppose $f$ is a linear function of $x$ . The slope is 2.16. An increase of 7 units in $x$ causes what change in $f$ ?
A) A decrease of 15.12 units
B) An increase of 15.12 units
C) An increase of 3.24 units
D) A decrease of 3.24 units

Question

Quizplus · Accepted Answer

Since the slope of the linear function is given to be 2.16, we know that for every increase of 1 unit in x, f will increase by 2.16 units. Therefore, for an increase of 7 units in x, f will increase by 7 x 2.16 = 15.12 units. Hence, the correct answer is B, an increase of 15.12 units.

Suppose fff Is a Linear Function Of xxx the Slope Is 2

Suppose $f$ Is a Linear Function Of $x$ the Slope Is 2