How do you graph the equation by plotting points y = -x - 2y=x2?

1 Answer
Jul 31, 2016

graph{y=-x-2 [-10, 10, -5, 5]}

Explanation:

y=-x-2y=x2
we can try xx from -11 to 11 and workout y possibilities.

x=0x=0
y=0-2=-2y=02=2

x=1x=1
y=-1-2=-3y=12=3

x=2x=2
y=-2-2=-4y=22=4

x=-1x=1
y=-(-1)-2=1-2=-1y=(1)2=12=1

x=-2x=2
y=-(-2)-2=2-2=0y=(2)2=22=0

plot the coordinates (0,-2),(1,-3),(2,-4),(-1,-1)(0,2),(1,3),(2,4),(1,1) and (-2,0)(2,0) and match them to get a straight line.