AnswersOC27 MATH COLL ALGEBRA-1200710-S1-YACKELLinear Functions

Linear Functions Answers

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1
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The cost to rent skis at a local sporting goods store is $15 plus $20 per day. Which equation models the relationship between the total cost to rent, c, and the length of the rental in days, d?

A
c = (15 + 20)d
B
c = 15d + 20
C
c = 20d + 15
D
c = (15 + d)20
2
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Which function is graphed on the coordinate plane below?

Question illustration
A
f(x) = 2x – 6
B
f(x) = 2x + 6
C
f(x) = –2x + 6
D
f(x) = –2x – 6
3

If f(x) = 4x + 12 is graphed on a coordinate plane, what is the y-intercept of the graph?

A
4
B
8
C
12
D
16

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