Question

I have not learned this yet in class and I am stuck on this homework problem.

Graph the linear equation by using a table of solutions.
3x-4y=12

Answer 1

Why are you trying to do this problem before you've learned how to do it in class?

Answer 2

An assignment with 3 of these problems was assigned to my class and we haven't learned it yet. I don't know when our professor plans on covering it but I'd like to finish my homework.

Answer 3

A linear equation of your type will produce a straight line when graphed.

So all you need are 2 distinct points.
Using the x and y intercepts are a quick and easy way to do this, after all the intercepts are just plain ol' points.

Here is an easy way to do this:

let x = 0
put your pinkie finger or a pencil over the x term, leaving you with -4y = 12, so y = -3
you got the y-intercept, (0,-3)

let y = 0 , again put your pinkie over the y term, leaving you looking at 3x = 12 , so x = 4
x-intercept is (4,0)

plot (4,0) and (0,-3), draw the line passing through those two points.

This method works really well if the constant is divisible by both the x and y coefficients, like it was for your equation.

Answer 4

thank you so much!!