AnswersFL-1200700-Mathematics for College Algebra MISSolving Linear Equations: Variable on One Side

Point-Slope Form of a Line Answers

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Talia wants to write the equation of the graphed line in point-slope form. These are the steps she plans to use:Step 1: Choose a point on the line, such as (2, 5).Step 2: Choose another point on the line, such as (1, 3).Step 3: Count units to determine the slope ratio. The line runs 1 unit to the right and rises 2 units up, so the slope is .Step 4: Substitute those values into the point-slope form.y – y1 = m(x – x1)y – 3 = (x – 1)Which of Talia’s steps is incorrect?

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A
Step 1 is incorrect because it uses a point that is not on the line.
B
Step 2 is incorrect because it uses a point that is not on the line.
C
Step 3 is incorrect because it shows an incorrect ratio for the slope.
D
Step 4 is incorrect because it shows an incorrect substitution of (1, 3) into the point-slope form.
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Chin was shown the graph of a line that contained point (1, 7). He wrote f(x) = 4x + 3 to correctly represent the line. Which of these equations could represent the same line?

A
y – 7 = 3(x – 1)
B
y – 1 = 3(x – 7)
C
y – 7 = 4(x – 1)
D
y – 1 = 4(x – 7)
3

Which equation represents a line that passes through (–2, 4) and has a slope of ?

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
4

Which equations and/or functions represent the graphed line? Select three options.

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
y – 3 = (x – 2)
Option D
E
Option
Option E
5

Which graph matches the equation y+3=2(x+3)?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
6

What is the slope of the line whose equation is y−4=(x−2)?

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A
Option A
B
Option B
C
StartFraction 2 Over 5 EndFraction.
Option C
D
StartFraction 5 Over 2 EndFraction.
Option D
7

The equation of a linear function in point-slope form is y – y1 = m(x – x1). Harold correctly wrote the equation y = 3(x – 7) using a point and the slope. Which point did Harold use?

A
(7, 3)
B
(0, 7)
C
(7, 0)
D
(3, 7)
8

Which graph matches the equation ?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
9

Anya graphed the line (y−2)=3(x−1) on the coordinate grid.

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A
−3
B
−1
C
1
D
3
10

Which equation represents a line that passes through (4, ) and has a slope of ?

Question illustration
A
y – = (x – 4)
Option A
B
y – = (x – 4)
Option B
C
y – = 4(x – )
Option C
D
y – 4 = (x – )
Option D

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