Question

hey! A medal and a fan awarded for whoever can help me solve this!
y=2x+5, y-4x=-2
I have to do this equation through graphing, please help!

Answer 1

have you graphed it?

Answer 2

ah, im stuck on the graphing part....

Answer 3

Use Desmos

Answer 4

Easiest way of graphing

Answer 5

okay, these are both linear equations: no exponents on \(x\) or \(y\). Here's my procedure for easy graphing of linear equations.

1) set \(x=0\) and find the value of \(y\). Put a mark at \((0,y)\).
2) set \(y = 0\) and find the value of \(x\). Put a mark at \((x,0)\).

Now draw a straight line through those points. Congratulations, you just graphed that equation.

Do both equations and figure out the coordinates of the point where they intersect. That is your solution.

Answer 6

So if y=2x+5, y-4x=-2 you need to get x and y on different sides... the first problem is fine but the second you need to move x to the other side by adding it so one side cancels out and x would be with -2. After doing this you would get y=4x-2

The equation you are currently using is y=mx+b. So to graph b is your y intercept so this number would go on your y axis and from there m is your slope. So you take the slope over 1 which would mean y=4x-2 has a slope of 4/1. To graph this starting from b you would go up 4 and to the right 1 or down 4 and to the left 1. And do the same thing with your other equation.