Question

Which of the following is a linear function?


y = x3 + 1
5/6 x = y – 4
y = 8x^2
y = 1/5x

Answer 1

Should this question have multiple answers? Because both b and d are linear with x. Meaning, if you were to graph them, they would be lines! a is a cubic, and is not a line. c is a parabola!

Answer 2

Grouping symbols are missing which lead to confusion.

Something like: 5/6 x = y – 4

Is that (5/6) * x = y - 4
OR
is that 5 / (6x) = y - 4

@Samirah16 Click on the blue DRAW tab and sketch by hand the equations as they appear in your text. That will clear the confusion. Thanks.