SOLUTION: Identify the correct x-intercept and y-intercept of the equation 15x - 5y = 30.

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Identify the correct x-intercept and y-intercept of the equation 15x - 5y = 30.      Log On


   

Question 549811: Identify the correct x-intercept and y-intercept of the equation 15x - 5y = 30.
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


15x+-+5y+=+30 Start with the given equation.


15x+-+5%280%29+=+30 Plug in y=0.


15x+-+0+=+30 Multiply 5 and 0 to get 0.


15x+-+0+=+30 Simplify.


15x=30%2B0 Add 0 to both sides.


15x=30 Combine like terms on the right side.


x=%2830%29%2F%2815%29 Divide both sides by 15 to isolate x.


x=2 Reduce.


So the x-intercept is .


------------------------------------------


y-intercept


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


15x+-+5y+=+30 Start with the given equation.


15%280%29+-+5y+=+30 Plug in x=0.


0+-+5y+=+30 Multiply 15 and 0 to get 0.


+-+5y+=+30 Simplify.


y=%2830%29%2F%28-5%29 Divide both sides by -5 to isolate y.


y=-6 Reduce.


So the y-intercept is .