Does 5x^2 + y =5 represent y as a function of x?

Classify the following triangle check all that apply

Identify which functions are linear or non-linear. a. f(x) = x2 + 1 b. f(x) = 2x + 5 c. f(x) = x 2 + 3 d. f(x) = 3 x + 7 e. f(x) = 4x + 10 2 - 5

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10