How do I graph 3x-5y=10? I have homework and forgot how. 😕

Question

I need to have work for the answer, I know I should do this by myself but I forgot! If you can just give me the formulas that'll be great!!

Answer 1

3X - 5Y = 10  <-- must solve for Y

 

 3X - 10 = 5Y  <-- they switch places and change signs in the process

 

3/5X - 2 = Y  <-- divides both sides by 5

 

So the slope is 3/5. The intercept is -2.

 

Plot (0,-2) on the graph.

Then go up three and to the right 5    (rise=3, run=5 ... that's the slope)

You get (5,1).

 

Set up a table. pick mutiples of 5 for X so as to get rid of the fraction,

plug them in, figure out the Y; then graph

 

 X     Y

---------

-5    -5

0     -2

5      1

10    4   <--- notice everytime x goes up by 5, y goes up by 3... that's the slope

 

Happy graphing

 

Answer 2

Can you transform into slope-intercept form?

Then use the intercepts and the slope to graph.

 

Go to go?