How do you do this and what is the answer?

a)

b)

Step-by-step explanation:

When working with these type of problems, they give you a function, which in this case is , and they give you what that function is equal to, it's value, which in this case is .

First let's work with letter a), (-4).

Let's now work with letter b), (0).

Hope it helped,

BiologiaMagister

a.) 19

b.) 3

Step-by-step explanation:

a.)

f(x) = x² + 3, f(-4)

f(-4) = (-4)² + 3

f(-4) = 16 + 3

f(-4) = 19

b.)

f(x) = x² + 3, f(0)

f(0) = (0)² + 3

f(0) = 0 + 3

f(0) = 3

Thus, f(-4) = 19 and f(0) = 3

-TheUnknownScientist

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.