Question

(1 point)

Answer 1

Given:

Let x represents the number of weeks.

Let y represents the amount of money.

Given that you are saving money for a new cell phone.

At week 0 you have saved $20 and at week 10 you have $100.

Writing this as coordinates, we get;

(0,20) and (10,100)

We need to determine the slope of the linear equation.

Slope:

The slope of the equation can be determined using the formula,

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

Substituting the coordinates, we get;

$m=\frac{100-20}{10-0}$

$m=\frac{80}{10}$

$m=8$

Thus, the slope of the linear equation is $8.

Hence, $8 is put away each week.