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Slope Direct Variation

y = mx + b Writing Equations

Parallel or Perpendicular The Past

Find the slope of the line that passes through the pair of

points: (-4, -1) (-3, -3)

A 100

-2

A 100

Find the value of r so the line that passes through each pair of points has the given slope.

(6, 2) (9, r) m=-1

A 200

-1

A 200

In 1990 there were 52 million cable subscribers in the US.

In 1998, there were 66 million. What was the rate of

change?

A 300

1.75 million subscribers per year

A 300

Find the value of r so that the line that passes through each pair of points has the given

slope.

(4, r) (r, 2) m=

A 400

3

5

7

A 400

What is the slope of the line that passes through (a, b) and

(a, -b)?

A 500

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A 500

What is the direct variation equation?

B 100

y = kx

B 100

What is the constant of variation in the following

equation?

y = -x

B 200

-1

B 200

If y = 8 when x = 4, find y when x =5.

B 300

y = 2x, 10

B 300

If y = 6 when x = , find x when y = 12.

B 400

3

2

y = 9x,

B 400

3

4

Write a direct variation equation that relates the

variables in the following:

Kona coffee beans are $14.49 per pound. The total cost of p

pounds is C.

B 500

C = 14.49p

B 500

What is the slope and y-intercept of the following?

y = 4x – 2

C 100

m = 4, b = -2

C 100

Write an equation of the line whose slope is 3 and y-

intercept is -1.

C 200

y = 3x - 1

C 200

What is the slope and y-intercept of the following?

2x + 3y = 6

C 300

m = , b = 2

C 300

3

2

DAILY DOUBLE

C 400

DAILY DOUBLE

Place A Wager

Write an equation of a horizontal line that crosses

the y-axis at (0, -5).

C 400

y = -5

C 400

Write an equation of a line that passes through the origin

with slope 3.

C 500

y = 3x

C 500

Write an equation of the line that passes through (1, 5)

with slope 2.

D 100

y = 2x + 3

D 100

Write an equation of the line that passes through the given point with the given slope.

(5, -2) m = 3

D 200

y = 3x – 17

D 200

Write the equation of the line that passes through the given

points.

(3, -2) (6, 4)

D 300

y = 2x – 8

D 300

Write an equation of the line that has each pair of

intercepts.

x-intercept: -3

y-intercept: 5

D 400

y = x + 5

D 400

3

5

Write the equation of the line that passes through the given

points.

( , 1) ( , )

D 500

4

3

4

5

4

1

y = x +

D 500

4

1

16

11

Write the slope-intercept form of an equation for the

line that passes through (-1, -2) and is parallel to the

graph of y = -3x – 2.

E 100

y = -3x – 5

E 100

Write the slope-intercept form of a line that passes

through (1, -3) and is perpendicular to the graph of

y = x + 4.

E 200

2

1

y = -2x – 1

E 200

Write the slope intercept form of a line that passes through (0, 4) and is perpendicular to

the graph of 3x + 8y = 4.

E 300

y = x + 4

E 300

3

8

Write the slope-intercept form of a line that passes

through (2, 2) and is parallel to the graph of 3x – 4y = -4.

E 400

y = x +

E 400

4

3

2

1

Are the graphs of the two equations perpendicular,

parallel or neither?

3y = 2x + 14

2x – 3y = 2

E 500

parallel

E 500

Solve the equation with the given domain.

y = x – 9

{-4, -2, 0, 2, 4}

F 100

{(-4, -13), (-2, -11), (0, -9), (2, -7), (4, -5)}

F 100

Find the next 3 terms in the arithmetic sequence.

-3, -11, -19, -27, …

F 200

-35, -43, -51

F 200

If f(x) = x2 – x + 1, find g(-1).

F 300

3

F 300

In the following arithmetic sequence, find the 16th term.

8, 11, 14, 17, …

F 400

53

F 400

The only straight line that is not a function is…..

F 500

Vertical

F 500

The Final Jeopardy Category is:

Equations

Please record your wager.

Click on screen to begin

2[s + 3(s – 1)] = 18

Click on screen to continue

3

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