215k views
0 votes
Given the function rule f(x) = x2 – 4x + 3, what is the output of f(–2)?

User Mslliviu
by
8.3k points

2 Answers

6 votes

SolutioN:-


\sf \longrightarrow \: f\:(–2)\: = {x}^(2) - 4x + 3


\sf \longrightarrow \:f\:(–2)\: = {( - 2)}^(2) - 4( - 2) + 3


\sf \longrightarrow \:f\:(–2)\: = {( - 2)}^(2) - 4 * ( - 2) + 3


\sf \longrightarrow \: f\:(–2)\: = 4 - 4 * ( - 2) + 3


\sf \longrightarrow \: f\:(–2)\: = 4 - ( - 8) + 3


\sf \longrightarrow \: f\:(–2)\: = 4 + 8 + 3


\sf \longrightarrow \: f\:(–2)\: = 12 + 3


\sf \longrightarrow \: f\:(–2)\: = 15

User Shylo Hana
by
8.2k points
4 votes

Answer:


\huge\boxed{\sf f(-2) = 15}

Explanation:

Given function:

f(x) = x² - 4x + 3

Put x = -2

f(-2) = (-2)² - 4(-2) + 3

f(-2) = 4 + 8 + 3

f(-2) = 15


\rule[225]{225}{2}

User Gtgaxiola
by
8.4k points

No related questions found

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

9.4m questions

12.2m answers

Categories