Linear, Exponential and Quadratic Functions

The graph represents the spread of COVID-19. Which of the following functions represents the spread of the virus?

• Linear Growth

• Linear Decay

• Quadratic (Local Min)

• Exponential Growth

• Exponential Decay

Which of the following describes the shape of a linear function?

• increasing, decreasing, or horizontal line

• parabola (U-shape) with min or max

• curve with horizontal asymptote

Which of the following describes the shape of a quadratic function?

• increasing, decreasing, or horizontal line

• parabola (U-shape) with min or max

• curve with horizontal asymptote

Which of the following describes the shape of an exponential function?

• increasing, decreasing, or horizontal line

• parabola (U-shape) with min or max

• curve with horizontal asymptote

Which of the following correctly explains how to tell if a table is linear, quadratic, and exponential?

• Linear: same 1st difference

  Quadratic: same 2nd difference

  Exponential: same ratio when dividing

• Linear: same 2nd difference

  Quadratic: same 1st difference

  Exponential: same ratio when adding

What is the y-intercept of the line?

• (-1,0)

• (1,0)

• (0,-2)

• (0,-1)

^{What is the x- intercept of the line?}

• (0,-2)

• (0,-1)

• (-1,0)

• (-2,0)

What is the x-intercept of the line?

• (-.5,0)

• (.5,0)

• (0,.5)

• (0,-.5)

Find the slope and y-intercept of this line.

• Slope is 3, y-intercept is -3

• Slope is 1, y-intercept is 3

• Slope is -1, y-intercept is 3

• Slope is -3, y-intercept is 3

What are the x- and y -intercepts on this graph?

• (0,5), (0,5)

• (5,0), (5,0)

• (5,0), (0,5)

• (0,0), (5,0)