CCSS.Math.Content.8.EE.C.7

Solve for the values of x:
(2x - 1)(x + 4) = 0

• { 1/2, -4 }
•  { 1/2, 4 }
• { 2, -4 }
• { -2, 4 }

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CCSS.Math.Content.8.EE.C.7

-7 - 2

• -9
• 9
• 5
• -5

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CCSS.Math.Content.8.EE.C.7

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

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CCSS.Math.Content.8.EE.C.7

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations
• math
• variable
• PEMDAS

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CCSS.Math.Content.8.EE.C.7

Solve:
7x - 3x - 8 = 24

• 8
• -8
• 3.2
• 4

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CCSS.Math.Content.8.EE.C.7

2x + 3(5x - 7) = 47

• x = 1
• x = 2
• x = 3
• x = 4

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CCSS.Math.Content.8.EE.C.7

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
 h = -16t² + 64t + 960.
When did the ball hit the ground?

• 10 seconds
• 2 seconds
• 5 seconds
• 7 seconds

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CCSS.Math.Content.8.EE.C.7

Find three consecutive even integers whose sum is 84.

• 26, 28, 30
• 28, 30, 32
• 27, 28, 29
• 24, 26, 28

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CCSS.Math.Content.8.EE.C.7

-3x + 11y - 4x

• 7x + 11y

• -7x + 11y

• 7x - 11y

• 4xy

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CCSS.Math.Content.8.EE.C.7

What is the next step you should take?

1 + 4n = 10 - 14n

• Collect the variables (letters) to the left

• add 1 from both sides

• subtract 14n to both sides

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CCSS.Math.Content.8.EE.C.7