Which of the following quadratic equations in standard form is equivalent to the quadratic function below vertex form?
f(x) = 2 (2 – 7)2 – 32

Y=4x^2+x-1 solve using quadratic formula

Answer these questions showing your work plz

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?