Question 1040281
For the equation y^2=x+9, list the intercepts, and check for symmetry.
Find the square root of both sides
y = +{{{sqrt(x + 9)}}}
y = -{{{sqrt(x + 9)}}}
y = 0 when x = -9, the x intercept
Find the y intercept, x = 0
y  = +{{{sqrt(0 + 9)}}}
y = +3
and
y = +\-{{{sqrt(x + 9)}}}
y = -3
:
looks like this
{{{ graph( 300, 200, -20, 10, -10, 10, sqrt(x+9), -sqrt(x+9)) }}}
Axis of symmetry is the x axis