Write the equation of the line through the indicated point with the indicated slope. write the final answer in the form y equals mx plus b. mequalsnegative 4; (4,minus3)

y = - 4x + 13

slope = -4

y-intercept = 13

$1,500

Step-by-step explanation:

The discounted amount is a function of the original amount. The discount when subtracted from the original sales price gives the price after discount.

If the amount after discount is $1200 and the discount is 20%, let the original sales price be x.

Then,

x - (20% × x) = $1200

80% × x = $1200

x = $1,500

The original sales price is $1,500