7.7A Writing & Graphing Linear Equations

Sonia has $40 in her lunch account and pays $2 each day to eat lunch.

• 40 + 2x
• 40 - 2x
• 2 + 40x
• 2 - 40x

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CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write an expression for the following. Jerry has $20 and makes $7 per hour.

• 7x + 20
• 7 + 20x
• 20 + 7

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CCSS.HSA-SSE.A.1A

A store sells new video games for $55 each. Used video games sell for $12 each. Jacob is buying 3 new video games and x used video games. Which equation can be used to find y, the total price Jacob must pay in dollars? (7.4A)

• y = 12x + 55

• y = 12x + 165

• y = 55x + 12

• y = 165x + 12

Tags

CCSS.8.EE.C.7

CCSS.8.F.A.1

CCSS.8.F.B.4

Which table contains only values that satisfy the equation

y = 0.5x + 14?

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CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

Adrianna has $20 in her savings account. Each week she will add $5 to it. Which equation represents this situation?

• y=25x
• y=20x+5
• y=5x+20
• y=5x

Tags

CCSS.6.EE.C.9

A fish is swimming at a constant rate toward the ocean floor. The equation y = -7x -3 can be used to represent this situation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming.

Which statement best describes the depth of this fish, given this equation? (7.7A)

• From a starting position of 7 meters below sea level, the fish is descending 3 meters per second

• From a starting position of 7 meters below sea level, the fish is ascending 3 meters per second

• From a starting position of 3 meters below sea level, the fish is descending 7 meters per second

• From a starting position of 3 meters below sea level, the fish is ascending 7 meters per second

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Which equation best represents the relationship between x and y in the table shown?

• y= 5x+5
• y=1/5x+5
• y=15x+5
• y=10x+5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write an equation from the following table:

• y=1/5 x+11
• y=10/3 x+10
• y=5x
• y=5x+11

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

• F

• G

• H

• J

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CCSS.8.EE.B.5

A dolphin travels through the water of a speed of 25 kilometers per hour. Which representation shows the distance a dolphin can travel at this rate? (7.4A)

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CCSS.8.EE.B.5