Linear or Quadratic Regression

Which type of regression model does the scatter plot appear to show?

• linear

• exponential

• quadratic

The linear regression equation is y = 61.93x - 1.79.  According to the model, the slope can be interpreted as:

• After 0 hours of driving, they went 61.93 miles.

• They drove at a speed of 61.93 miles per hour.

• They drove 61.93 miles total.

• They drove 61.93 hours total.

A restaurant sells pizza for the prices in the data table.  Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = 12x + 1.5

• y = 0.67x - 8

• y = -8x + 0.67

Find the quadratic equation for the relationship of the horizontal distance and the height of the ball.

• y= -18x² + 2.11x + 4.21

• y= -.06x² +1.06x + 7.9

• y= -6x² +1.06x + 79

• y= -.12x² + 2.11x + 4.22

Determine the curve of best fit. Hint: view the scatter plot and check correlation coefficients to determine which is the best fit.

• y = -2.7x + 7.4

• y = 0.95x² - 2.08x - 0.75

• y = -.05x - 3.26

• y = 0.95x² + 2.08x + 0.75

Identify the function shown shown
.

• Linear

• Quadratic

• Exponential 

• Not answering

Is it linear, quadratic, or exponential?

• Linear

• Quadratic

• Exponential

• Outrageously outrageous

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

Which graph shows a line of best fit for the scatter plot?

• Graph A

• Graph B

• Graph C

• Graph D

What type of function does this scatter plot represent?

• Quadratics

• Linear

• Exponential