Given the point and slope, write the equation in slope-intercept form.

(-5, -2); slope = -1

y = -x -7

Step-by-step explanation:

Use point slope

y − y1 = m(x − x1)

y - (-5) = (-1)(x-(-2))

y + 5 = -x -2

y = -x -7

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you