Determine the intercepts and graph equation y=x2−9 by plotting points. Be sure to label the intercepts.
x-intercept:
y=x2−9Given equation0=x2−9To find the x-intercept, we let y=0x2=9x=±3
The x-intercept is (3,0) and (−3,0)
y-intercept:
y=x2−9Given equationy=02−9To find the y-intercept, we let x=0y=−9
The y-intercept is (0,−9)
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