Can someone help me out on #14 and/or #16 please.. thank you :)

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asked Sep 9, 2018 6.6k views

2 votes

Can someone help me out on #14 and/or #16 please.. thank you :)

Mathematics
high-school

Ravi Waghmare asked

by Ravi Waghmare

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2 Answers

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14. replace x with -4
f(-4) = 3(-4)^2+4(-4)-1
= 48-16-1
= 31

16. cost, C = 4h+15 [h represent hour]

Carena answered Sep 12, 2018

by Carena

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7 votes

I'm not sure for #14 but I think I know the answer to #16:

In the equation, h stands for the amount of hours: (4 x h) + 15

Does it make sense to you?

Gaurav Sharma answered Sep 13, 2018

by Gaurav Sharma

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