Unit 3 Part 1 Test REG Math 3QT

Use the slope equations and find the slope:

1st point ( 1 , 2 ) 2nd point ( 4 , 26 )

• Slope = 7

• Slope = 8

• Slope = -8

• Slope = 4

Tags

CCSS.8.EE.B.5

Use the slope equations and find the slope:

1st point ( -2 , 19 ) 2nd point ( 3 , -26 )

• Slope = -1

• Slope = -3

• Slope = 4

• Slope = -9

Tags

CCSS.8.EE.B.5

Y = 9X + 2

Input (X) = 1

Output (Y) =

• 11

• 15

• -6

• -15

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Y = -3X + 7

Input (X) = -3

Output (Y) = ?

• 16

• 23

• -9

• -11

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Y = 7X - 4

Input (X) = 7

Output (Y) = ?

• 54

• 31

• -1

• 45

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Y = 1/2 X + 3

Input (X) = 10

Output (Y) = ?

• 8

• 2

• -8

• -6

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The Y-intercept is ( 0, -1)

2 points from the equation are

(4, 15) and (6, 23)

What is the equation?

• Y = 5X + 1

• Y = X - 1

• Y = -2X - 1

• Y = 4X - 1

Solve for X

4X - 7 = 3X + 3

• X = -10

• X = 10

• X = -1

• X = 1

Solve for X

7X + 11 = -4X - 11

• X = -3

• X = 8

• X = -2

• X = 7