Free Printable Week 5 Classwork Practice

1.

Choose the equation of the line with the point

\left(-12,\ 65\right)

and the slope of

18

in point-slope form.

a)

$y-65=18\left(x-12\right)$

b)

$y-65=18\left(x+12\right)$

c)

$y=12+18\left(x-65\right)$

d)

$y+65=18\left(x+12\right)$

2.

Find the slope between the points $\left(12,\ -2\right)$ and $\left(6,\ 3\right)$ .

a)

$-\frac{5}{6}$

b)

$-\frac{1}{6}$

c)

$\frac{5}{6}$

d)

$\frac{1}{6}$

3.

Write an equation of the line that passes through the points $\left(12,\ -2\right)$ and $\left(6,\ 3\right)$ .

Hint: You'll need the slope you found for these two points.

a)

$y=-2-\frac{5}{6}\left(x-12\right)$

b)

$y=12-\frac{5}{6}\left(x-2\right)$

c)

$y=12-\frac{5}{6}\left(x+2\right)$

d)

$y=-2-\frac{5}{6}\left(x+12\right)$

4.

$y=-3-\left(x+2\right)$

State the point AND slope that were used to write the above equation.

This is a MULTI-SELECT problem: select BOTH the point and the slope to get this question correct.

a)

$\left(-3,\ 2\right)$

b)

$\left(2,\ -3\right)$

c)

$\left(-2,\ -3\right)$

d)

Slope = $-1$

e)

Slope = $-3$

5.

What is the slope of the line graphed?

a)

$m=3$

b)

$m=\frac{1}{3}$

c)

$m=-\frac{1}{3}$

d)

$m=-3$

6.

Which is the equation of the line on the graph?

a)

$y=3\left(x-1\right)+2$

b)

$y=-3\left(x+1\right)-2$

c)

$y=3\left(x+1\right)-2$

d)

$y=-3\left(x-1\right)-2$

7.

Vera pays $32 a month plus $0.75 for each minute she goes over her allowed minutes on her phone plan.

Which equation models how much Vera spends on her phone plan in a month?

a)

$y=32x+0.75$

b)

$y=0.75x+32$

c)

$y=32.75x$

d)

$y-32=0.75\left(x-1\right)$

8.

Use your equation from #7:

What would the Vera's phone bill be for the month if she went over her allowed minutes by 17 minutes?

a)

$12.75

b)

$44.75

c)

$544.75

d)

$49.75

9.

Use your equation #7:

If her bill last month totaled $47, how many minutes did Vera go over her allowed minutes?

a)

20 minutes.

b)

15 minutes

c)

67 minutes

d)

63 minutes

Week 5 Classwork Practice

Total questions: 9

Worksheet time: 5mins

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