for
f(x)= 4x + 3
f(0) would be
f(0)= 4*0 + 3, or just 3
x is just set to 0 and everything it multiplies with vanishes
if x < 0 the result is smaller then 3
if x > 0 the result is bigger than 3
b. x- 48 =120
step-by-step explanation:
what are the statements? and what do you mean by "216 2 1 6"?