Y+4=2(x+3) In slope-intercept form

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

How many zeros does this polynomial function, y=(x-8)(x+3)^2

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]