Algebra Extra Credit Opportunity #2

April wants to prove that she can solve the system of equations below using the substitution method.
3x + y = 8
y = 4x - 6

Which equation shows the first step in solving the system of equations using the substitution method?

• 7x + 2y = 2
• -x +2y = 2
• 3x + (4x-6) = 8
• 3(4x-6) +y = 8

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the equation
4(2x-5)=7(2x+4)

• 8
• -8
• -1.5
• 1.5

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve the equation for y
4x+2y=16

• y=4x+16
• y=-2x-8
• y=2x+8
• y=-2x+8

Tags

CCSS.6.EE.C.9

Which is the graph of y=-x+2?

• A
• B
• C
• D

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

How would you write the equation with a slope of 2/3 and a y-intercept of -3

• y=3/2x+3
• y=2/3-3
• y=2/3x-3
• y=2/3x+3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

A helicopter hovers 40 ft above the ground. Then the helicopter climbs at a rate of 21 ft/s. Write a rule that represents the helicopter’s height h above the ground as a function of time t. 

• h = 40t + 21
• h = 21t + 40
• h = -40t + 21
• h = -21t + 40

Tags

CCSS.HSF-BF.A.1A

In slope intercept form y=mx+b what is the "m"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

In slope intercept form y=mx+b what is the "b"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the y-intercept of the line graphed below?

• 3
• 4
• -3
• 4/3

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

What is the y-intercept in the equation?
y = 5x - 4

• 5
• -4
• -5
• 4

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3