Question

X

Y
3
12
6
-3
q
- 18
12
-33
Is this linear or non-linear
Explain.

Answer 1

linear

Explanation:

gradient 1 =
`(-3-12)/(6-3)` = -5

gradient 2 =
`(-18+3)/(9-6)` = -5

therefore, the graph is linear as the gradient is constant