91影视

Determine the following parabolas open up or down.$y=5x^2+6x+3$

In the following exercises, determine if the following parabolas open up or down.

$y=5x^2+6x+3$

Determine the following parabolas open up or down.$y=x^2+8x-1$

In the following exercises, determine if the following parabolas open up or down.

$y=x^2+8x-1$

Determine the following parabolas open up or down.

In the following exercises, determine if the following parabolas open up or down.

$y=-4x^2-7x+1$

Find a the axis of symmetry and b the vertex.$y=-x^2+6x+8$

In the following exercises, find 鈸� the axis of symmetry and 鈸� the vertex.

$y=-x^2+6x+8$

Find (a) the axis of symmetry and (b) the vertex.$y=2x^2-8x+1$

In the following exercises, find 鈸� the axis of symmetry and 鈸� the vertex.

$y=2x^2-8x+1$