FINAL EXAMAN please help
.1-For the quadratic equation ax2 + bx + c =0, the discriminant is D=_______. Thediscriminant tells us how many real solutions a quadratic equationhas.
If D > 0, the equation has zero, one or two realsolutions.
If D = 0, the equation has zero, one or two realsolutions.
If D < 0,the equation has zero, one or two realsolutions.
2-Find the domain of the function. (Enter your answer usinginterval notation.)
f(t) = t + 5
3-A graphing calculator is recommended.A family of functions is given. Graph all the given members of thefamilies in the viewing rectangles indicated.
f(x) = 1/xn
(a) n = 1, 3; [−3, 3] by[−3, 3]
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