SOLUTION: Graph the linear system and estimate the solution. Then check the solution algebraically. y = 4x +3 20x - 5y = -15 I really don't understand how to do these types of probl

Algebra ->  Linear-equations -> SOLUTION: Graph the linear system and estimate the solution. Then check the solution algebraically. y = 4x +3 20x - 5y = -15 I really don't understand how to do these types of probl      Log On


   

Question 354991: Graph the linear system and estimate the solution. Then check the solution algebraically.
y = 4x +3
20x - 5y = -15
I really don't understand how to do these types of problems. Could you please break it down step by step for me?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
y = 4x +3
...
20x - 5y = -15
/5
4x-y=-3
y=4x+3
both the lines are same.
..
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C%284x%2B3%29%2C%284x%2B3%29%29
only one line will be visible in the graph. the line intersects the the y axis at (0,3)
there are infinitely many solutions to the system of equations