If f(x) = 2x² + 3x - 19, find f(-4)

QAmmunity.org

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Tags
Categories
Ask a Question

Jturcotte asked Aug 10, 2023

148,680 views

14 votes

If f(x) = 2x² + 3x - 19, find f(-4)

Mathematics
high-school

Jturcotte asked Aug 10, 2023

by Jturcotte

2.9k points

0 Comments

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Your answer

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

2 Answers

24 votes

Answer:

f(-4)=1

Explanation:

f(x) = 2x² + 3x - 19

f(-4)=2(-4)² + 3(-4)-19

f(-4)=2(-16)+3(-4)-19

f(-4)=-32+3(-4)-19

f(-4)=32-12-19

f(-4)=20-19

f(-4)=1

Marcello answered Aug 11, 2023

by Marcello

2.9k points

0 Comments

Your comment on this answer:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

20 votes

2(-4)^2+3(-4)-19
32+(-12)-19= 1

Parrish answered Aug 16, 2023

by Parrish

2.8k points

0 Comments

Your comment on this answer:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Ask a Question

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers

0 Comments

Your comment on this question:

Your answer

2 Answers

0 Comments

Your comment on this answer:

0 Comments

Your comment on this answer:

Other Questions