Can anyone help me pls help me

Explanation:

A quadratic equation may have two different real solutions, two equal real solutions, or two complex (conjugated) solutions.

The graph of a quadratic function with two different real solutions crosses the x-axis at two points, which are the x-intercepts.

The graph of a quadratic function with two equal real solutons touches the x-axis at one point, which is the x-intercept.

The graph of a quadratic function with two complex solutions does not touch or cross the x-axis: it does not have x-intercepts.

Look at the determinant of the equation: it is the amount inside the root:

That is a positve number ( > 0). When the discriminant is greater than zero, the equation has to different real solutions, which are the x-intercepts of the graph.

Hence, in this case, Cody can use the graph because the x-intercepts are the solutions of the equation.

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24