Question

8. The table shows how many pages Andy reads. Does Andy read at a

Answer 1

Rates are used to show how a quantity measures over another.

Andy does not read at a constant rate.

The table is given as:

$\left[\begin{array}{cccccc}x&10&20&30&40&50\\y&4&9&10&15&20\end{array}\right]$

Pick any two points from the table:

$(x_1,y_1) = (10,4)$

$(x_2,y_2) = (20,9)$

The rate (m) is then calculated as:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

So, we have:

$m = \frac{9-4}{20-10}$

$m = \frac{5}{10}$

$m = 0.5$

Pick another point from the table

$(x_1,y_1) = (10,4)$

$(x_2,y_2) = (30,10)$

The rate (m) is then calculated as:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{10 - 4}{30 - 10}$

$m = \frac{6}{20}$

$m = 0.3$

The rates calculated are not equal

i.e. 0.3 and 0.5 are not equal

This means that;

Andy does not read at a constant rate.

Read more about rates at:

brainly.com/question/13103052