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

Classify by degree of polynomial:
2x – 9

• Constant
• Linear
• Cubic
• Quadratic

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TEKS.MATH.8.5B

Evaluate f(x)=-2x+13   for f(10)

• -7
• 1
• -8
• 7

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TEKS.MATH.8.5B

An internet company charges a $100 set up fee, and then they charge $35 a month after that.  What is the initial value?

• $100
• $35
• $135
• $65

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TEKS.MATH.8.5B

Sonya wrote the equation
y=0.1x + 5 to find the total cost of her phone bill, y, based on the number of texts she sends per month, x.  What is the y-intercept of the equation of the line?

• b=1/10
• b= 1/5
• b=1
• b=5

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TEKS.MATH.8.5B

The start up cost to join eTunes music is $7.95 plus $0.95 per song downloaded.  If Will spent $26, write and solve a linear equation to find how many songs he downloaded.

• 32 songs
• 33 songs
• 19 songs
• 36 songs

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TEKS.MATH.8.5B

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

• y = -1

• y = -x

• y = -x - 1

• y = 2x

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TEKS.MATH.8.5B

Which of the following is the slope-intercept form?

• m = (y₂ - y₁)/(x₂ - x₁)

• y = mx + b

• y - y₁ = m(x - x₁)

• ax + by = c

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TEKS.MATH.8.5B

Which linear equation has a slope of -3 and a y-intercept of (0,4)?

• y = 3x - 4

• y = -3x + 4

• y = 4x - 3

• y = -4x + 3

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TEKS.MATH.8.5B

Which linear equation has a slope of -3 and a y-intercept of (0,4)?

• y = 3x - 4

• y = -3x + 4

• y = 4x - 3

• y = -4x + 3

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TEKS.MATH.8.5B