Chapter 1, Problem 66RE

(A)

To determine

To find: The intercepts of the quadratic function $f\left(x\right)=-0.4x^2+3.2x+1.2$.

(B)

To determine

To find: The vertex of the quadratic function $f\left(x\right)=-0.4x^2+3.2x+1.2$.

(C)

To determine

To find: The maximum or minimum of $f\left(x\right)=-0.4x^2+3.2x+1.2$.

(D)

To determine

To find: The range of quadratic function $f\left(x\right)=-0.4x^2+3.2x+1.2$.