SOLUTION: Find the gradient and y intercept for the linear realtions and sketch a graph. 2x+y=6 Hi can you help with this please, could you also provide a full explanation please Cheers!

Algebra ->  Linear-equations -> SOLUTION: Find the gradient and y intercept for the linear realtions and sketch a graph. 2x+y=6 Hi can you help with this please, could you also provide a full explanation please Cheers!      Log On


   



Question 449170: Find the gradient and y intercept for the linear realtions and sketch a graph.
2x+y=6
Hi can you help with this please, could you also provide a full explanation please
Cheers!

Found 2 solutions by lwsshak3, mananth:
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find the gradient and y intercept for the linear realtions and sketch a graph.
2x+y=6
..
What you have here is an equation of a straight line but you should rearrange the terms so it is in standard form as follows:
y=mx+b, with m=slope or gradient as you call it (∆y/∆x) and b=y-intercept
for given equation:
y=-2x+6
so, slope=-2 and y-intercept=6
The following graph is a visual check on these parameters. Notice the y-intercept at 6, and the negative slope of -2=-∆y/∆x. Also, notice the x-intercept at 3 which is obtained by setting y=0, then solving for x.

+graph%28+300%2C+300%2C+-10%2C+10%2C+-10%2C+10%2C+-2x%2B6%29+

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
y=-2x+6
gradient = -2
when x= 0,y=6 (0,6)
when y =0,x=3 (3,0)