What are the x and y-intercepts for the equation y = 2x + 8 ?

All I know is that it equals (0,8) and (-4,0) but I don't know how to work it out.

1 Answer
Jim G.
Feb 8, 2018

#y=8" and "x=-4#

Explanation:

#"to find the x and y intercepts"#

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

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

#x=0toy=0+8rArry=8larrcolor(red)"y-intercept"#

#y=0to2x+8=0rArrx=-4larrcolor(red)"x-intercept"#
graph{(y-2x-8)((x-0)^2+(y-8)^2-0.04)((x+4)^2+(y-0)^2-0.04)=0 [-20, 20, -10, 10]}

Related questions
Impact of this question
1878 views around the world
You can reuse this answer
Creative Commons License