The equation y = −40x + 380 represents the number of miles y a hybrid car can still travel after using x gallons of gas. how many gallons of gas does the car's tank hold?

Step-by-step explanation:

Let

y -----> the number of miles

x ----> the number of gallons of gas

we have

Find out the x-intercept

The x-intercept is the number of gallons that the car's tank hold

The x-intercept is the value of x when the value of y is equal to zero

For y=0

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)

%40

step-by-step explanation: