The Watson Family is going on a road trip. The data in the table shows the relationship between speed and fuel economy for their car. The data can be modeled by the quadratic function y=-0.0075x^2 +0.575x + 11.5, where x represents the speed in miles per hour and y represents the fuel economy in miles per gallon (MPG). Which speed rounded to the nearest whole number will give them the best fuel economy? A. 40 mph

B. 23 mph

C. 32 mph

D. 38 mph

It keeps saying image is to big so I'll type
Table:
Speed (miles per hour)
30
40
50
Fuel economy (miles per gallon)
22.0
22.5
21.5

i dont know i just need points

i cant see the graph

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°