The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. one day, she counts 21 seats and 30 wheels. which equation in slope-intercept form shows that x bicycles and y unicycles together have a total of 30 wheels?

a. y = -2x - 30
b. y = -2x + 30
c. y = 2x + 30
d. y = 2x - 30

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =