8th Math 2nd 9wk Study Guide

Solve by elimination 
5x+6y= -10
3x-2y= -6

• (-2,0)
• (0,-2)
• (2,0)
• (0,2)

What is the solution to this system?
x - y = 6
y= 2x - 5

• (1,3)
• (-1,3)
• (-1,-7)
• (1,-7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Find slope:

• m= 4
• m=1/4
• m=-4
• m=-1/4

Write in slope intercept form given the slope: m=3 and y int: -2

• y=3x-2
• y=2/3x
• y=-2x+3
• y=3x

Lee charges $3 for a basket and $2.50 for each pound of fruit picked at the orchard. Write an equation in y = mx + b form for the total cost of x pounds of fruit from the orchard.

• y = 3x + 2.5
• y = 2.50x + 3
• y = 2.50x 
• y = 3x + 2.50

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the constant of proportionality?

• $3
• $4
• $2
• $9

Tags

CCSS.HSF-LE.A.1B

The constant of proportionality in the equation y = ½x is _______. 

• x
• y
• 1/2
• 2

Tags

CCSS.7.RP.A.2B

Write an equation for this relationship.

• y=18x
• y=18.50x
• y=22.50x
• y=22x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which company shows a greater slope?

• Water's Edge Rafts
• Ryan's Rafts

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Find the slope:

• 3/4
• 4/3
• -3/4
• -4/3

Tags

CCSS.8.EE.B.5