Q:

Can someone help me with 7,8, and 9 with work plz.

Accepted Solution

A:
Answer:1)Slope of the line  joining the points (-11,2) and (-1,-13) =  (-3/2)2) The x intercept of 3x + 8y = 96 is 32.3) 40 + 25 x  = y is the desired equation.Step-by-step explanation:1) Slope of the line is given as [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]Here,(x1,y1) = (-11,2) and (x2, y2) = (-1,-13)So, slope [tex]m = \frac{-13 - 2}{-1 -(-11)}   = \frac{-15}{10}  = -\frac{3}{2}[/tex]Hence, slope of the line =  (-3/2)2) Equation given here is 3x + 8y = 96Here, to determine x - intercept put y = 0 in above equation3x  + 8(0) = 96or, x = 96/3 = 32Hence, the x intercept of 3x + 8y = 96 is 32.3) Registration fess per month = $40Membership per month of gym = $25If, there are x months of membership,                     y is total price spent, thenAccording to question:40 + 25 x  = y is the desired equation.