Max and Evie are comparing the number of ride tickets they have for an amusement park. They notice that Evie has 4 less than three times the number of tickets that Max has. If the number of tickets Max has is represented by n, then which of the following represents the COMBINED number of tickets Max and Evie have in terms of n?

3n - 4?

Step-by-step explanation:

E = 3M - 4

M = n

= 3n - 4

I think

Step-by-step explanation:

A quadratic equation is an equation with at least one squared term. The most common form of a quadratic equation is ax^2 + bx + c, where a, b, and c are coefficients (numbers). The graph of a quadratic equation is a parabola. If a in ax^2 + bx + c is positive, then the graph looks like a U-shape. However, if a is negative, the its graph looks like an upside-down U-shape.  

Here, the equation y=x^2-9 is a quadratic equation because it has the term x^2, which qualifies the requirement of having at least one squared term to be considered a quadratic equation. To find the root, simply set y = 0, i.e. set (x^2-9) = 0. This means x^2 = 9, which means x = 3 or x = -3. (these are the roots of y=x^2-9).