Help me with my new book use this as a reference

v v cj van config k tbs eng r.c r.c fcb fb gb frfr

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .