kingmadelaine
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Paul is a salesperson who earns both a salary and a commission on units sold. In one week, he sold 22 units and earned $1,130. In another week, he sold 31 units and earned $1,265. Which of the following slope-intercept form equations models Paul’s weekly pay in terms of units sold?

PLEASE ANSWER AND SHOW WORK! THANK YOU

Respuesta :

ok so the points we work with are (22, 1130) and (31, 1265).
slope-intercept form is y=mx+b
Where m is slope.
Slope = (y2-y1)/(x2-x1)
Slope = m = (1265-1130)/(31-22)
m = (135)/(9)
m = 15

So
1265 = 15(22) + b
1265 = 330 + b
b = 935

so
y = 15x + 935

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