Find f(5) and f(-1) for the equation: f(x)= -2x + 2

A.-8 and 1
B.-8 and -1
C.-8 and 4
D.-8 and 2

C. -8 and 4

Step-by-step explanation:

Step 1: Plug in f(5)

f(5) = -2(5) + 2

f(5) = -10 + 2

f(5) = -8

Step 2: Plug in f(-1)

f(-1) = -2(-1) + 2

f(-1) = 2 + 2

f(-1) = 4

-8 and 4

Step-by-step explanation:

Put x as 5 and solve.

f(5) = -2(5) + 2

f(5) = -10 + 2

f(5) = -8

Put x as -1 and solve.

f(-1) = -2(-1) +2

f(-1) = 2 +2

f(-1) = 4

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step-by-step explanation:

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week