TEKS.MATH.8.5B

Is the equation y=7x+5 proportional or non-proportional?

• proportional
• non-proportional

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TEKS.MATH.8.5B

Jerry has $20 and makes $7 per hour. Which equation represents the total amount of money Jerry has after working x hours?

• y = 7x + 20
• y = 7 + 20x
• y = 20 + 7

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TEKS.MATH.8.5B

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

• -4
• -4x
• 5
• -5

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TEKS.MATH.8.5B

Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes.  Which system of equations represents the situation?

• 3x + 2y = 315
  2x + 4y = 450
• 3x + 2y = 450
  2x + 4y = 315
• 2x + 2y = 315
  3x + 4y = 450

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TEKS.MATH.8.5B

What letter represents the slope in the equation y = mx + b ?

• x
• y
• m
• b

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TEKS.MATH.8.5B

Taxi company A charges $8.00 to get into the cab and $0.75 per mile. Taxi company B charges $6.00 to get into a cab and $1.25 per mile. How many miles would the cost be the same for both companies? 

• 2 miles 
• 4 miles
• .50 mile
• -4 miles 

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TEKS.MATH.8.5B

An electrician charges $90 per hour along with a $60 traveling fee.  If your bill was $600, write an equation that can be used to determine how many hours (h) it took the electrician to complete the job.

• 60 - 90h=600
• 90h + 60 = 600
• 60h + 90 = 600
• 60h - 600 = 90

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TEKS.MATH.8.5B

Write the equation y - 13 = x + 14 in slope-intercept form.

• y = x + 27

• y = x - 1

• y = x + 1

• y = x

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TEKS.MATH.8.5B

Slope-Intercept Form

• y=mx+b

• y=kx

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TEKS.MATH.8.5B

Is this equation in slope-intercept form?

2y = 6x -1

• yes

• no

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TEKS.MATH.8.5B