Linear Functions Quiz

Which of the following equations represents a linear function?

• y = mx^2 + b

• y = mx^3 + b

• y = mx + c

• y = mx + b

Which graph represents a linear function?

• Graph D

• Graph C

• Graph A

• Graph B

What is the slope of the line represented by the equation y = 2x + 4?

• -2

• 4

• 0

• 2

Which of the following equations has a slope of -3?

• y = 3x + b

• All equations in the form y = -3x + b

• y = 2x + b

• y = -x + b

What is the y-intercept of the line represented by the equation y = 0.5x + 2?

• 0.5

• 2.5

• 2

• -2

Which of the following equations represents a vertical line?

• y = mx + b

• y = c

• y = mx^2 + b

• x = c

What is the slope of a horizontal line?

• 0

• 1

• undefined

• infinity

Which of the following equations represents a line with a negative slope?

• y = 2x + 3

• y = -2x - 3

• y = 2x - 3

• y = -2x + 3

What is the x-intercept of the line represented by the equation y = -2x + 4?

• 2

• 0

• 4

• -2

Which of the following equations represents a line parallel to y = 3x + 2?

• y = 3x + 5

• y = 2x + 3

• y = -3x + 2

• y = 3x - 2