SOLUTION: It says to plot the intercepts to graph the equation??? 7x-3y=-21

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Question 184804: It says to plot the intercepts to graph the equation???
7x-3y=-21
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

x-intercept


To find the x-intercept, plug in y=0 and solve for x


7x-3y=-21 Start with the given equation.


7x-3%280%29=-21 Plug in y=0.


7x-0=-21 Multiply -3 and 0 to get 0.


7x=-21 Simplify.


x=%28-21%29%2F%287%29 Divide both sides by 7 to isolate x.


x=-3 Reduce.


So the x-intercept is .


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y-intercept


To find the y-intercept, plug in x=0 and solve for y


7x-3y=-21 Start with the given equation.


7%280%29-3y=-21 Plug in x=0.


0-3y=-21 Multiply 7 and 0 to get 0.


-3y=-21 Simplify.


y=%28-21%29%2F%28-3%29 Divide both sides by -3 to isolate y.


y=7 Reduce.


So the y-intercept is .



Now plot the points and







Draw a straight line through these points to graph 7x-3y=-21

Graph of 7x-3y=-21