Question

In math class, Blake earned a 94 in the first quarter, an 86 in the second quarter, an 88 in the third quarter, and a 96 in the fourth quarter. Find the rate of change from the second to the fourth quarter.

Answer 1

Explanation:

r = 5

Answer 2

If we have that the rate of change can be represented as:

Then, we have that:

y1 = 86 in the Second-quarter, and x1 = 2

y2 = 96 in the Fourth-quarter, and x2 = 4

Then, we have:

`R=(y_2-y_1)/(x_2-x_1)=(96-86)/(4-2)=(10)/(2)\Rightarrow R=5`

Therefore, the rate of change between these two quarters is 5.