Christmas Math Game

Find The Slope

400

Find the slope of the line through the points (1/2 , 3/4) and (-1/3 , 5/4).

- 3 / 5

600

Find, the slope of the line through the points (2 , 5) and (-4 , 5).

0

800

Find, the slope of the line through the points (-9 , 4) and (-9 , -2)

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1000

Line L passes through the points (4 , -5) and (3 , 7). Find the slope of any line perpendicular to line L

 1 / 12

1200

Find the slope of the line given by it equation: 2 x + 4 y = 10

 - 1 / 2

Elimination

400

-4x-2y=-12

4x+8y=-24

6,-6

600

4x + 8y = 20

−4x + 2y = −30

7,-1

800

x − y = 11

2x + y = 19

10,-1

1000

−6x + 5y = 1

6x + 4y = −10

-1,-1

1200

−2x − 9y = −25

−4x − 9y = −23

-1,3

Substitution

400

y = 6x − 11

−2x − 3y = −7

(2,1)

600

−3x − 3y = 3

y = −5x − 17

(-4,3)

800

−5x + y = −2

−3x + 6y = −12

(0,-2)

1000

−3x + 3y = 3

−5x + y = 13

(-3,-2)

1200

−3x + 3y = 4

−x + y = 3

No Solution

Adding/Subtracting Negatives

400

(-33) + 47 =

14

600

-30) - (-82)

52

800

(-42) + 68 =

26

1000

-36) + (-58) =

-94

1200

11 - (-23) =

34

Linear Equations

400

3b+9 = −18

b = −9

600

−3c+8 = −10

c = 6

800

−2a+2 = −18

a = 10

1000

 3u+9 = 15

u=2

1200

 −2c+7 = 27

c=-10