What is the equation of the function shown in the graph, given the equation of the parent function is f(x)=3.5x ?

g(x)=3.5x−2

g(x)=3.5x+1.5

g(x)=3.5x+1

g(x)=3.5x−1

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.