y = - 
(x - 5)² + 4
the equation of a quadratic in standard form is
y = a(x - h)² + k ( where (h , k ) are the coordinates of the vertex and a is a multiplier )
given vertex = ( 5, 4 ) then
y = a(x - 5)² + 4 ( to find a substitute (7 , 1 ) into the equation )
1= 4a + 4
4a = - 3 ⇒ a = -
y = - (x - 5)² + 4 ← ( in vertex form )
Answer is C.
w + c <= 27
hope it helps
There are 80 lights. 28 x 12 divided by 4 minus 4 lights for the 16 inches before the first light.
then substitute,
After Further Simplication,
use quadratic formulae
therefore
Answer:
b = 7
Step-by-step explanation:
4b - 4 = 3b + 3
4b - 3b = 3 + 4
b = 7
