SOLUTION: Sketch a graph of all the (x,y) coordinates that satisfy the equation y-x^2=-1

Algebra ->  Test -> SOLUTION: Sketch a graph of all the (x,y) coordinates that satisfy the equation y-x^2=-1       Log On


   

Question 676925: Sketch a graph of all the (x,y) coordinates that satisfy the equation y-x^2=-1
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Rearrange as y = mx+b
y = x^2 - 1
...
To sketch your graph, find intercepts and few other points to plot
...
y intercept is -1
Plot (0, -1)
...
x intercept is when y = 0
0 = x^2 - 1
1 = x^2
+/-sqrt%281%29=sqrt%28x%5E2%29
x = +/- 1
Plot (1,0) and (-1,0)
...
choose a few other x values, -2,2,-3,3 and solve for y
...
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2Cx%5E2-1%29
.....................
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com
Wanting for others what we want for ourselves.