SOLUTION: hi, i need help on my wrksht. it says to graph these linear equations using 3 points. the equation is 3x-4y=12. please help me and explain how u got this answer.thanks in advance.c

Question 18590: hi, i need help on my wrksht. it says to graph these linear equations using 3 points. the equation is 3x-4y=12. please help me and explain how u got this answer.thanks in advance.can u please answer my question before sunday.
Answer by music974(43) (Show Source): You can put this solution on YOUR website!
To graph the linear equation you must plug in any three numbers to x or y.The first number can be x=0. 3(0)-4y=12, 0-4y=12, -4y=12.After you do these three steps you then divide each side by -4.Then you would get y=-3.So the first point would be (0,-3).The second number would be y=0. 3x-4(0)=12, 3x-0=12, 3x=12. Now you divide each side by 3 which gives you x=4. Your second point would be (4,0). The third number would be x=8. 3(8)-4y=12, 24-4y=12, -4y=-12. Now you divide each side by -4 which gives you y=3. The third point would be (8,3). The three points would be (0,-3),(4,0),(8,3).
RELATED QUESTIONS
hi, i really dont understand some things in algebra. on my worksheet it says to graph... (answered by music974)

My Homework question is: Solve each system of equations by graphing. If the two... (answered by stanbon)

this problem is from the beginning algebra book I need help to graph this linear... (answered by adamchapman)

I need help with this math homework problem It says solve the linear equation using the (answered by jim_thompson5910)

I need you to help with a graphical method. I do not understand it or algebra to beging... (answered by mananth)

Hi! I need help with these problems. I don't know how to graph them. Can you help me? The (answered by friesr)

I don't know anything about geometry and I need to help my 4th grade son. Please help... (answered by lyra)

x5y-z=16 3x-3y+2z=12 2x+4y+z=20 i need to solve using the linear combination.... (answered by stanbon)

Hi can you please help me in solving these equations thank you 1.what are the values... (answered by dolly)