Translate the description as an algebraic expression:
twice the difference of c and 19

2(c - 19)

Step-by-step explanation:

Twice the difference of c  and 19

2 (c - 9)

When it says "twice the difference.." it means you will times the difference of c - 19 by 2

Difference of c and 19=c-19

Twice of (c-19)=2(C-19).

So, the final answer is 2(c-19).

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