Answer:
Yes it is linear
Step-by-step explanation:
To prove that it is linear we plot these points on a graph paper or just sketch it.
(0,10) , (1,12) , (2,15) , (3,19)
when we sketched these points and drew a line connecting the dots we see that the graph is a straight line and a straight line graphs represent a linear function. Try using desmos graphing calculator to plot these points and see for yourself
