Scatter Plots

Front

Equation of the line of best fit for distance vs. time graph? Options: y = -25x + 170, y = 25x + 170, y = -(5/8) x + 170, y = (5/8) x + 170

Back

y = -25x + 170

Front

Equation of the line of best fit for the amount earned by waiters and waitresses in relation to the number of tables served.

Back

y = (5/3) x + 375

Front

Expected number of guests at 80° in a theme park based on trend line?

Back

8,300

Front

Approximate the rate of change from the line of best fit in a scatter plot showing the effect of drinking coffee before bed on sleep.

Back

- (5/7) hours/cup

Front

Equation of line of best fit for cell phone bills vs. minutes used: y = (1/2) x + 3, y = (1/2) x + 15, y = (1/40) x, y = (1/40) x + 15

Back

y = (1/40) x + 15

Front

What is the correlation between the x and y variables?

Back

y decreases as x increases

Front

Predict the grade of a student that has 7 absences based on the graph showing absences vs. final grades.

Back

60

Front

Which scatterplot most likely has a line of best fit represented by y = - 2x + 1? Options: W, X, Y, Z

Back

Y

Front

Equation of the line of best fit for income earned by lawn companies vs. number of yards mowed.

Back

y = 30x

Front

Equation of the line of best fit for the value of used cars in relation to the number of years since purchase.

Back

y = - 750 x +11000