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Parabolas
Determing the Equation of parabola
Question | Answer |
---|---|
y=a(x-h)²+k | vertex form |
y=a(x-h)²+k vertex | (h,k) |
y=a(x-h)²+k axis of symmetry | x=h |
ax²+bx+c | standard form |
ax²+bx+c axis of symmetry | -b/2a |
ax²+bx+c y-intercept | c |
a(x-p)(x-q) | intercept form |
a(x-p)(x-q) x-intercepts | (p,0) (q,0) |
a(x-p)(x-q) axis of symmetry is halfway between _________ | p and q |
a(x-p)(x-q) x coordinate of vertex | p+q/2 |
ax²+bx+c x coordinate of vertex | -b/2a |
Form of Equation y=... | y=a(x-h)^2+k |
Form of Equation x=... | x=a(y-k)^2+h |
opening up, y=... | a>0 |
opening down, y=... | a<0 |
opening to the right x=... | a>0 |
opening to the left x=... | a<0 |