Question

What is the constant in this expression? 3x^2 - 2x + y - 4

a. -2
b. 1
c. -4
d. 3

Answer 1

A constant is something that does not vary.
so, the 3x^2 term for example is not a constant since its value can change depending on the value of x.
similarly -2x is not a constant as its value can change depending on the value of x.

so, with this, can you spot which term is constant?

Answer 2

so its c?

Answer 3

correct - well done!