7. Find the range of f(x) = –2x – 5 for the domain {–2, –1, 1, 2}.

A. {–1, –3, 7, 9}

B. {1, 3, 5, 7}

C. {–1, –3, –7, –9}

D. {–1, –3, 3, 5}

C) [-1,-3,-7,-19]

Step-by-step explanation:

Range = {-2(-2) - 5, -2(-1) - 5, -2(1) - 5, -2(2) - 5} = {4 - 5, 2 - 5, -2 - 5, -4 - 5} = (-1, -3, -7, -9}

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry