This app honestly just never me! i post my questions and i never get them answered and its so annoying because i actually need a lot of but no one can me and if i dont get good grades in what im doing i may not graduate high school

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

If sin(x) = 0 and cos(x) = 1, what is tan(x)?