5-48 Kirsta was working with the function machine shown at right, but when she turned her back, her little brother Caleb dropped in a number. She did not see what he dropped in, but she did see what fell out: 9. a. What operations must she perform on 9 to undo what her machine did? Use this to determine what number Caleb dropped in. b. Write an equation for a machine that will undo Kirsta's machine.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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5-48
TulowIng Tunctiuns.
f (x) = 3x – 8
a.
b.
x+6
c. f(x)=:
5-48
Kirsta was working with the function machine shown at right, but when she turned her back, her
little brother Caleb dropped in a number. She did not see what he dropped in, but she did see what
fell out: 9.
a. What operations must she perform on 9 to undo what her machine did? Use this to determine
what number Caleb dropped in.
b. Write an equation for a machine that will undo Kirsta's machine.
5-84
Given f (x)=-2x-4 and g(x)= 5x+3
a. What is f(-7) ?
b. What is g(-2)?
c. If f(x)=c, what is x?
Transcribed Image Text:TulowIng Tunctiuns. f (x) = 3x – 8 a. b. x+6 c. f(x)=: 5-48 Kirsta was working with the function machine shown at right, but when she turned her back, her little brother Caleb dropped in a number. She did not see what he dropped in, but she did see what fell out: 9. a. What operations must she perform on 9 to undo what her machine did? Use this to determine what number Caleb dropped in. b. Write an equation for a machine that will undo Kirsta's machine. 5-84 Given f (x)=-2x-4 and g(x)= 5x+3 a. What is f(-7) ? b. What is g(-2)? c. If f(x)=c, what is x?
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