Question

Helen borrowed money from her aunt to pay for college expenses. The graph below shows the amount left

Answer 1

Answer:

$y = -100x + 13000$

Step-by-step explanation:

See attachment for graph

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (0,13000)$

$(x_2,y_2) = (130,0)$

Next, we calculate the slope (m)

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

$m = \frac{0 - 13000}{130 - 0}$

$m = \frac{- 13000}{130}$

$m = -100$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 13000 = -100(x - 0)$

$y - 13000 = -100x$

Make y the subject

$y = -100x + 13000$

Hence, the line equation is:

$y = -100x + 13000$