If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x)?

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asked Apr 10, 2021 49.3k views

2 votes

If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x)?

Mathematics
high-school

Stepan Novikov asked

by Stepan Novikov

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2 Answers

2 votes

Answer:

D on edge

Explanation:

SamBeran answered Apr 11, 2021

by SamBeran

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3 votes

Answer:

Explanation:

hello,

$f(x)=-x^2+3x+5\\g(x)=x^2+2x \ \ \ so \ \ \ \\\(f+g)(x)=f(x)+g(x)=-x^2+3x+5+x^2+2x=5x+5\\$

this is a line, graph below

hope this helps

If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x-example-1

Tim Potter answered Apr 15, 2021

by Tim Potter

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