TEKS.MATH.8.5I

What is the equation of this line?

• y = 2x +2
• y = 2x -2
• y = -x + 2
• Cannot be Determined

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TEKS.MATH.8.5I

Which of the following situations could be descried by the equation y=120-25x?

• There are 120 people in the football stadium, and 25 more are entering each hour.
• A plumber charges $25 for a house call and $120 per hour.
• A teacher has 120 students. Her third period has 25 students
• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

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TEKS.MATH.8.5I

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

• C = 15 + 0.20x
• C =15 (0.20x)
• C = 15 + x + 0.20
• C = 0.20 + 15x

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TEKS.MATH.8.5I

Which is the graph of y= -x + 2?

• A
• B
• C
• D

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TEKS.MATH.8.5I

What is the slope in the equation:  y=4x+3

• 3
• 4x
• 4
• x

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TEKS.MATH.8.5I

How would you write the equation with a slope of 2/3 and a y-intercept of -3

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

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TEKS.MATH.8.5I

Write in slope-intercept form:
-3x + 4y = 12

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

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TEKS.MATH.8.5I

Daniel is paid $10 per week for selling newspaper subscriptions.  He is also paid $3.50 for each new customer (x) that signs up for the subscription.  Which equation represents the amount (y) Daniel earns  per week?

• y = 3.5x
• y= x + 10
• y = 3.5x + 10
• y = 10x + 3.5

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TEKS.MATH.8.5I

Diketahui barisan aritmetika dengan u₁ = 3 dan bedanya – 2. Barisan bilangan tersebut   adalah ...

• 3, 4, 5, 6...
• 3, 2, 1, 0
• 3, 5, 7, 9, ...
• 3, 1, –1, –3

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TEKS.MATH.8.5I

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

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

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TEKS.MATH.8.5I