b) The x-intercepts are at -1 and 7 with a maximum at 4.

4. The pair of equations y = 0 and y = -7 has

The graph of a certain quadratic function has no x-intercepts. Which of the following are possible values for the discriminant? Check all that apply.A.0B.-7C.18D.-25SUBMITarrow_backPREVIOUS

1. Suppose that, for x ≥ 0, the curve C has equation y = 3x − x√x.(a) Find the coordinates of the x-intercepts of C.(4 marks)(b) Find the coordinates of the stationary point of C and determine whether it isa maximum, a minimum or a point of inflection.(7 marks)(c) Sketch the curve C.

"Quadratic functions have Answer 1 Question 16, or x𝑥-intercepts, in any other case where the function crosses the x𝑥-axis at two separate points.

Which of the following represents the x-intercepts and the vertex of the quadratic relation y = −x2 − 6x + 27?