HELP NOW PLEASE k(x)=x^(2)+3x+8 find k(-1) find k(0) find k(5)

Miku asked May 6, 2023

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30 votes

HELP NOW PLEASE

k(x)=x^(2)+3x+8

find k(-1)
find k(0)
find k(5)

Miku asked May 6, 2023

by Miku

2.5k points

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23 votes

Answer:

6, 8, 48

Explanation:

substitute x = - 1, 0, 5 into k(x)

k(- 1) = (- 1)² + 3(- 1) + 8 = 1 - 3 + 8 = 6

k(0) = 0² + 3(0) + 8 = 0 + 0 + 8 = 8

k(5) = 5² + 3(5) + 8 = 25 + 15 + 8 = 48

R H answered May 11, 2023

by R H

2.9k points

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