Answer:
Option A - Non-linear
Step-by-step explanation:
Given : Graph the function by the table.
x y
1 12.3
2 19.6
3 26.6
4 34.2
5 41.5
To find : Is the function linear or nonlinear?
Solution :
The function is linear when there slopes are equal.
So, we find the slope of the points.
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Taking point, [tex](x_1,y_1)=(1,12.3)[/tex] and [tex](x_2,y_2)=(2,19.6)[/tex]
[tex]m=\frac{19.6-12.3}{2-1}[/tex]
[tex]m=\frac{7.3}{1}[/tex]
[tex]m=7.3[/tex]
Taking point, [tex](x_1,y_1)=(2,19.6)[/tex] and [tex](x_2,y_2)=(3,26.6)[/tex]
[tex]m=\frac{26.6-19.6}{3-2}[/tex]
[tex]m=\frac{7}{1}[/tex]
[tex]m=7[/tex]
We have seen that slope between points are not equal.
Therefore, The given points are non-linear.
So, Option A is correct.
