The temperature is 21°c below zero.

which integer represents this temperature?

a. +21

b. −21

the answer is B. -21 because it says below zero

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1