Use the point-slope equation to identify the slope and the coordinates of a point on the line y – 4 = (x – 1).

Slope m = 1

Point (1, 4)

General Formulas and Concepts:

Algebra I

Point-Slope Form: y - y₁ = m(x - x₁)  

Step-by-step explanation:

Step 1: Define function

y - 4 = (x - 1)

Step 2: Break Function

Identify Parts

Slope m = 1

Point (1, 4)

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