Question

Which number line shows all the values of x that make the inequality -3x+1<7
true?

Answer 1

D

Explanation:

Firstly, we need to get the value of x 1-7 < 3x

-6 < 3x

-2 < x

or x > -2

So we need a number line that has the unshaded circle placed at 2 ( since the inequality sign is single) and it faces the right (arrow face right)