Question

the cash register subtract $2.50 from a $25 Coffee Cafe gift card for every medium coffee that Kareem buys, how many medium coffees can Korean buy with a gift card. I need slope, y intercept, and equation

Answer 1

In this case the answer is very simple. .

Step 01:

Data

Kareem's gift card = $25

Medium coffee = $2.50

Step 02:

We can represent the number of coffees Kareen can buy using a linear equation.

x 1 = 0 coffee y 1 = $25

x2 = 1 coffee y2 = 25 - 2.50 = $22.50

Slope formula

`m=\frac{y2\text{ - y1}}{x2\text{ - x1 }}=(22.50-25)/(1-0)=-2.50`

Point-slope form of the line

(y - y1) = m (x - X1)

( y - 25) = -2.50 ( x - 0)

y = -2.50 x + 25

The answer is:

slope: m = - 2.50

equation of the line: y = -2.50 x + 25

y intercept = 25