If cx = 5 units, then dz = __units.

need to do a ratio

25/20 = 5/x

20*5 = 100

x=100/25 = 4

DZ = 4 units

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

c. side angle side. u shares the same sides