TEKS.MATH.9-12.II.D.1

Which of these represents point-slope form of a linear equation?

• y - y₁ = m(x - x₁)
• Ax + By = C
• y = mx + b
• y=kx

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TEKS.MATH.9-12.II.D.1

TEKS.MATH.9-12.II.A

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

• 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.9-12.II.D.1

Mrs. Moises, the school counselor, keeps a candy jar in her office for students.  During one week, she kept count of how many students came to visit her and the number of candies in the jar, as show in the scatter plot.  Based on the trend line, what is the best prediction for the number of candies in the jar when 30 students visit her?

• 90
• 180
• 135
• 150

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TEKS.MATH.9-12.II.D.1

The equation
 y = 461.19x + 3,492  represents the value of a work of art from 1964 to 2005.  What does the number 461.19 represent? 

•  The value of the work of art in 1964
•  The value of the work of art in 2005
• The yearly decrease in value
• The yearly increase in value  

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TEKS.MATH.9-12.II.D.1

What does 'b" represent in y=mx+b

• y-intercept
• base
• nothing
• slope

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TEKS.MATH.9-12.II.D.1

TEKS.MATH.9-12.II.A

What shape does the function y<2x+1 form? 

• straight line with shading
• curved line with shading
• V-shape
• straight line without shading 

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TEKS.MATH.9-12.II.D.1

What is the y-intercept of this graph?

• (0,1)
• (0,-2)
• (0,0)
• (0,3)

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TEKS.MATH.9-12.II.D.1

Match the graph with the correct equation.

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TEKS.MATH.9-12.II.D.1

TEKS.MATH.9-12.II.D.2

Which equation matches the graph? (Click me to see the image)

• y = -1/4x + 2

• y = 1/4x + 2

• y = 1x + 4

• y = 4x + 2

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TEKS.MATH.9-12.II.D.1

TEKS.MATH.9-12.II.D.2

Which graph shows the equation y = 2/3x - 3

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TEKS.MATH.9-12.II.D.1