Linear Equations fall final math 8

How do you find slope from two points?

• y = mx + b

• y₂ - y₁ / x₂ - x₁

• Ax + By = C

• A = 1/2 bh

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CCSS.8.EE.B.5

In the linear equation y = mx + b, what does the b represent?

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CCSS.8.F.A.3

CCSS.8.EE.B.6

In the linear equation y = mx + b, what does it mean if the + sign changes to a – sign?

In the linear equation y = mx + b, which variable represents slope?

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CCSS.8.F.A.3

CCSS.8.EE.B.6

Which of the following relations are functions? Select all that apply.

• a

• b

• c

• d

• e

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CCSS.8.F.A.1

In the equation x = -4 , how would you describe the slope?

• Positive

• Negative

• Zero

• Undefined

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CCSS.8.EE.B.5

In the equation y = x , how would you describe the slope?

• Positive

• Negative

• Zero

• Undefined

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CCSS.8.EE.B.5

In the equation y = 5 , how would you describe the slope?

• Positive

• Negative

• Zero

• Undefined

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CCSS.8.EE.B.5

The table shows the total cost for the flat delivery fee and purchase of mulch, based on the number of cubic yards of mulch. Assume the relationship between the two quantities is linear. Write an equation of this function.

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CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Two lines with the same slope will best be described as which of the following?

• Parallel

• Perpendicular

• Intersecting at one point

• Intersecting at 2 points

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CCSS.8.EE.B.6