TEKS.MATH.8.5I

Talk time Phone Company charges $0.12 per minute of phone use plus a monthly service fee of $8.00 for its phone service.  Which equation below can be used to find c, the total cost for one month when m, minutes are used?

• c = 0.12m + 8m
• c = 8m + 0.12m
• c = 0.12m + 8
• c = 0.20m

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TEKS.MATH.8.5I

TEKS.MATH.8.5B

Which equation is being represented by this line?

• y = -1x + 2
• y = 1/2x + 2
• y = 3x -4
• y = -3x +2

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TEKS.MATH.8.5I

Write the equation for the line in slope-intercept form.

• y= -1x+3
• y= 4x+3
• y=1/4x+3
• y= -4x+3

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TEKS.MATH.8.5I

Is the function Linear or Nonlinear?

• Linear
• Nonlinear

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TEKS.MATH.8.5I

TEKS.MATH.8.5B

Write an equation  
m = 5/4 through         (-4, -3)

• y = 5/4x +2
• y = -5/4x + 2
• y = 2x - 5/4
• y = 3/4x + 2

Tags

TEKS.MATH.8.5I

Solve for y
5x - y = 6

• y= 5x-6
• Y= -5X +6
• Y=5X+6
• Y=-5X-6

Tags

TEKS.MATH.8.5I

TEKS.MATH.8.5B

In the equation, y = mx + b, the letter b is the ___________.

• y-intercept
• x-intercept
• slope
• rate of change

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TEKS.MATH.8.5I

TEKS.MATH.8.5B

John and Vicki are training for a 5km race.  John has already run 20 kilometers and plans to run 10 kilometers each day.  Vicki has already run 30 kilometers but plans to run only 5 kilometers per day. The graph below displays each of their training schedules. Which system of equations could be used to determine by which day both John and Vicki will have run the same amount in their training schedule?

• John: y = 20x + 10    Vicki: y = 30x + 5
• John: y = 10x + 20    Vicki: y = 30x + 5
• John: y = -10x + 20  Vicki: y = 5x + 30
• John: y = 10x + 20  Vicki: y = 5x + 30

Tags

TEKS.MATH.8.5I

TEKS.MATH.8.5B

Write the equation of a line with a slope of -3 and y intercept of 8

• x = 8
• y = -3
• y = 8x -3
• y = -3x + 8

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TEKS.MATH.8.5I

TEKS.MATH.8.5B

How would you write y = 2x - 3 in function notation?

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

Tags

TEKS.MATH.8.5I

TEKS.MATH.8.5B