Question

Which of the following is a linear function? (1 point)

a
y = x3 + 1

b
five over sixx = y − 4

c
y = 8x2

d
y = one over five x

Answer 1

to be linear, the function:

- must only contain the independent variable (x) raised to an exponent of 1 (a.k.a just x). no other powers like x^2 or x^-3.
- must not contain x in the denominator (that would imply x has a negative exponent)

which of your answer choices fits this description?