The scatter plot shows the time spent studying, x, and the quiz score, y, for each of 25 students. (a) Write an approximate equation of the line of best fit for the data. It doesn't have to be the exact line of best fit. (b) Using your equation from part (a), predict the quiz score for a student who spent 70 minutes studying. Note that you can use the graphing tools to help you approximate the line. Quiz score 100- 90- 80- 70- 60- 50- 40- 30- 20- y 10+ 0 * X X X xx x x² X x x xx vx 'xx. xx X xx X 10 20 30 40 50 60 70 80 90 100 Time spent studying (in minutes) A X 5 (a) Write an approximate equation of the line of best fit. y = 0.933X + 23.3335 (b) Using your equation from part (a), predict the quiz score for a student who spent 70 minutes studying. 89 X Ś

find the slope and y intercept from the graph

The scatter plot shows the number of years of experience, x, and the amount charged per hour, y, for each of 23 dog sitters in California. (a) Write an approximate equation of the line of best fit for the data. It doesn't have to be the exact line of best fit. (b) Using your equation from part (a), predict the amount charged per hour by a dog sitter with 10 years of experience. Note that you can use the graphing tools to help you approximate the line. Amount charged in dollars \per hour/ 22- 20+ 18+ 16+ 14+ 12+ 10- 8- 6- 4+ 2+ 0 2 4 X 6 X X +3 +: X 8 10 12 14 16 18 20 22 Years of experience X S (a) Write an approximate equation of the line of best fit. :0 y = (b) Using your equation from part (a), predict the amount charged per hour by a dog sitter with 10 years of experience. $0 x Ś

Find the equation of the line passing through (-5.14, 3.74) with slope 41.624. y =