Determine if 7x2+y=5 is a linear or nonlinear function.
a. There is not enough information to determine if 7x^2+y=5 is a linear or nonlinear function.
b. The graph of the function 7x^2+y=5 is not a straight line.
c. The function 7x^2+y=5 is a nonlinear function.
d. The function 7x^2+y=5 is a linear function.