What is the parabola of f(x)=2x^2+8x+6

For the equations below which statement is true ?

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )