In the first Lesson Activity, you derived an equation to model a car wash. The equation is y = 5x – 75. In this activity, you will graph this equation. Is it possible to graph the line that represents this equation by using two points found in the previous Lesson Activity, (15, 0) and (0, -75)? Explain your answer.

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  yes. The graph goes through those two points

Step-by-step explanation:

The equation can be graphed by plotting the two given points and drawing a line through them. Such a graph is shown in the attachment.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!