How do you graph #y = 300 - 50x#?

1 Answer
Jan 19, 2018

See a solution process below:

Explanation:

First, solve for two points which solve the equation and plot these points:

First Point: For #x = 4#

#y = 300 - (50 * 4)#

#y = 300 - 200#

#y = 100# or #(4, 100)#

Second Point: For #x = 6#

#y = 300 - (50 * 6)#

#y = 300 - 300#

#y = 0# or #(6, 0)#

We can next plot the two points on the coordinate plane:

graph{((x - 4)^2+(y-100)^2-15)((x-6)^2+y^2-15)=0 [-200, 200, -25, 175]}

Now, we can draw a straight line through the two points to graph the line:

graph{((x - 4)^2+(y-100)^2-15)((x-6)^2+y^2-15)(y + 50x - 300)=0 [-200, 200, -25, 175]}