What is the equation of the quadratic graph with a focus of (2, − 2) and a directrix of y = 0? (1 point) Select one: a. f(x) = −one fourth (x − 2)2 − 1 b. f(x) = −one fourth (x − 2)2 + 1 c. f(x) = −one fourth (x − 2)2 d. f(x) = one fourth (x − 2)2 + 1

7

step-by-step explanation:

the answer would be 7

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.