Given f (x)= 2x^2+3+5, find f (-1)

f(-1) = 10

Step-by-step explanation:

f(x) = 2x² + 3 + 5

f(-1) = 2(-1)² + 8

= 2×1 + 8

= 2 + 8

= 10

13. jbhgfsfyfvhvbjko

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.