How do you graph -2y=-x+82y=x+8 by plotting points?

1 Answer
Jun 12, 2018

"see explanation"see explanation

Explanation:

"one way is to find the intercepts, that is where the"one way is to find the intercepts, that is where the
"graph crosses the x and y axes"graph crosses the x and y axes

• " let x = 0, in the equation for y-intercept" let x = 0, in the equation for y-intercept

• " let y = 0, in the equation for x-intercept" let y = 0, in the equation for x-intercept

x=0rArr-2y=8rArry=-4larrcolor(red)"y-intercept"x=02y=8y=4y-intercept

y=0rArr-x+8=0rArrx=8larrcolor(red)"x-intercept"y=0x+8=0x=8x-intercept

"plot the points "(0,-4)" and "(8,0)plot the points (0,4) and (8,0)

"draw a straight line through them for graph"draw a straight line through them for graph
graph{(y-1/2x+4)((x-0)^2+(y+4)^2-0.04)((x-8)^2+(y-0)^2-0.04)=0 [-10, 10, -5, 5]}