Chapter 11: Conics

Solve$2{(b+2)}^2=80$

Write the quadratic function in form $f\left(x\right)=a{(x-h)}^2+k$whose graph is shown.

(a) Solve the following quadratic inequality graphically and (b) write the solution in interval notation.

$x^2+2x-8<0$

Solve$3{(b+3)}^2-8=88$

Write the equation of the parabolic arch formed in the foundation of the bridge shown. Write the equation in standard form.

Write the equation of the parabolic arch formed in the foundation of the bridge shown. Write the equation in standard form.

Solve by completing the square :

$b^2+8b-4=16$

Solve by completing the square :

$(c-2)(c+8)=11$

Solve by completing the square :

$3r^2-2r=21$

Write the equation of the parabolic arch formed in the foundation of the bridge shown. Write the equation in standard form.