Question

Yo someone help pls

can you convert vertex form f(x) = -0.32 (x - 5)^2 + 12 to standard. pls do help, i'm so stressed out about this

Answer 1

f(x) = -0.32x² +3.2x +4

Explanation:

Standard form is the same equation with the parentheses eliminated and like terms combined. It is written with the powers of the variable in decreasing order.

When simplifying the square of a binomial, it can help to have in mind the form ...

(a -b)² = a² -2ab +b²

Your equation simplifies to ...

f(x) = -0.32(x -5)² +12

= -0.32(x² -10x +25) +12

= -0.32x² +3.2x -8 +12

f(x) = -0.32x² +3.2x +4