12. Quadratic Equations and Functions

Which equation from choices $A-D$ matches the quadratic graph below.

Determine if the parabola opens up or down.

$y=-2x^2-6x-7$

Determine if the parabola opens up or down.

$y=\frac{1}{2}{x}^2-5x$

Graph each quadratic equation by finding and plotting ordered pair solutions.

$y=-3x^2$

Graph each quadratic equation by finding and plotting ordered pair solutions.

$y=2x^2+5$

Which graph from choices $A-D$ matches the quadratic equation below.

$h\left(x\right)=-(x-3{)}^2+2$

State the vertex, axis of symmetry, and domain & range for each quadratic.

$y=-x^2-21$

State the vertex, axis of symmetry, and domain & range for each quadratic.

$f\left(x\right)={(x+\frac{1}{4})}^2+3$

State whether the graph of $f\left(x\right)$ will be narrower or wider than $g\left(x\right)=x^2$ & if it opens up or down.

$f\left(x\right)=\frac{3}{2}{x}^2$

State whether the graph of $f\left(x\right)$ will be narrower or wider than $g\left(x\right)=x^2$ & if it opens up or down.

$f\left(x\right)=-\frac{3}{7}{x}^2$

State the vertex, intercepts, and domain & range for each quadratic.

$G\left(x\right)=3(x-6{)}^2$

State the vertex, intercepts, and domain & range for each quadratic.

$y=-2x^2+11$

State the vertex, intercepts, and domain & range for each quadratic.

$f\left(x\right)=-4{(x+\frac{2}{3})}^2-3$

Vertex Form of Quadratics Practice 14

Graph the following quadratics and state its vertex and intercepts.

$y=x^2-2x-3$