Sketch a suitable graph and shade the region on the graph that shows the solution of the inequality $y\ge 4-3x-2x^2$.

Find the quadratic function for the parabola given in the graph.

Find the quadratic function for the parabola given in the graph.

Find the quadratic function for the parabola given in the graph.

A parabolic dam is built across a river, as shown in the graph. The maximum height of the dam above the water level is $3$m, and the length of the dam across the river is $90$ m

Write a quadratic function that models the parabolic arch of the dam.

Solve the quadratic inequalities algebraically and confirm graphically.

$x^2-2x-3\le 0$

Solve the quadratic inequalities algebraically and confirm graphically.

$x^2-10x+16>0$

Solve the quadratic inequalities algebraically and confirm graphically.

$12+x-x^2\ge 0$