Answers JHHS LA-Algebra I Slope-Intercept Form of a LineQuestion 7

7

QuizMultiple Choice

Slope-Intercept Form of a Line

Question 7 • JHHS LA-Algebra I

The profit earned by a hot dog stand is a linear function of the number of hot dogs sold. It costs the owner $48 dollars each morning for the day’s supply of hot dogs, buns and mustard, but he earns $2 profit for each hot dog sold. Which equation represents y, the profit earned by the hot dog stand for x hot dogs sold?

Answer

A

y=48x−2

B

y=48x+2

C

y=2x−48

D

y=2x+48

Explanation

The stand earns $2 for each of the x hot dogs sold, so its earnings are 2x dollars. The owner also pays $48 for supplies each morning, which must be subtracted from those earnings. Therefore, the profit is y = 2x − 48, choice C.

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