Choose the graphs that show a linear function.

The second graph is a linear function.  

A linear function:

The second option is a linear function as it is a straight line and shows that there is a constant relationship between x and y.

We can therefore conclusively say that the second graph is a linear function.

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Graphs that show a linear function is second option

The linear equation graphs are the equation of straight line graph with slope.

for example y = mx  where (x,y) be the point on the line and m be the slope.

here the only second graph shows a straight line graph. y values changes by when x value changes. there is a slope.

when we a x value we can compute the corresponding y value.

$12. that is my answer.