It's 14. I don't understand if u are trying to test us or something like that because it's almost Christmas
Answer:
Step-by-step explanation:
Standard Form : f (x) = a(x - h)2 + k
Where in this equation (H,K) is the vortex of the parabola
<u>and there are four other ways to solving these quadratic</u>
1. Factoring
2. Completing the square
3. Your quadratic formula ( f (x) = a(x - h)2 + k )
4. Graphing
1/4 off means 0.25 * 28
7
Sale price = 28-7
= 21
