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Quiz 3 A

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8 Nsɛmmisa
MP.3
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1

SANTA MARGARITA CATHOLIC HIGH SCHOOL
Caritas Christi
Quiz 3 A — Sections 1.7, 2.1, and 2.2

Name: ___________________________ Period: ______ Date: ______________ Score: ______ / 18

DIRECTIONS: For multiple-choice questions (Q1–Q5), circle the letter of the best answer. For free-response questions (Q6–Q7), show all work for full credit. The section for each question is noted in italics.

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1.

Section 1.7

The table gives selected values of $f$. Evaluate $f^{-1}(23)$ and $f^{-1}(4)$. What is $f^{-1}(23)+f^{-1}(4)$?

$x$

0

1

2

3

4

5

$f(x)$

9

4

23

15

31

7

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2.

Section 1.7

Find $f^{-1}(x)$ for $f(x)=\dfrac{x+2}{3x-5}$.

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3.

Section 2.1

Write the equation of the line through $(-3,-1)$ and $(3,5)$ in slope-intercept form.

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4.

Section 2.1

Write the equation of the line through $(5,2)$ that is perpendicular to $y=5x-1$.

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5.

Section 2.2

Rewrite $3x+y=9$ in slope-intercept form.

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6.

Free Response — Show All Work for Full Credit

Section 1.7

Find $f^{-1}(x)$ for $f(x)=\dfrac{x+3}{2x-7}$. Show all algebraic steps.

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7.

Section 2.1

Find the equation of the line through $(1,-4)$ and $(-3,4)$. Write your answer in slope-intercept form. Work space:

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8.

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