7. Given 2x+1 if x < −1 f(x) = x-4 if x > -1 (a) (4 points) Evaluate at f(-5) and f(2). (b) (6 points) Graph f(x) below. Clearly indicate which dots are open and closed. 9 8- 7- 6- 5+ 4+ 3+ 2+ 1- 9-8 -7 -6 -5 -4 -3 이 -2 -1 1 2 3 6 7 8 9 -1 -2- -3+ -4 -6 -7+ -8+ -9+

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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Related questions
Question
7. Given
2x+1
if x < −1
f(x) =
x-4
if x > -1
(a) (4 points) Evaluate at f(-5) and f(2).
(b) (6 points) Graph f(x) below. Clearly indicate which dots are open and closed.
9
8-
7-
6-
5+
4+
3+
2+
1-
9-8
-7 -6
-5
-4 -3
이
-2 -1
1
2
3
6 7 8 9
-1
-2-
-3+
-4
-6
-7+
-8+
-9+
Transcribed Image Text:7. Given 2x+1 if x < −1 f(x) = x-4 if x > -1 (a) (4 points) Evaluate at f(-5) and f(2). (b) (6 points) Graph f(x) below. Clearly indicate which dots are open and closed. 9 8- 7- 6- 5+ 4+ 3+ 2+ 1- 9-8 -7 -6 -5 -4 -3 이 -2 -1 1 2 3 6 7 8 9 -1 -2- -3+ -4 -6 -7+ -8+ -9+
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