MYP Standard Mathematics Topic 5 Functions and…

If the discriminant $\Delta$ of the quadratic equation $ax^2 + bx + c = 0$ is exactly equal to $b^2$ , which of the following is a necessary conclusion about the solutions of the equation?

True or False: In a mapping diagram, if there is an element in the input set (Domain) that does not have an arrow originating from it, the relationship is still considered a function as long as no other input has more than one arrow.

Find the values of $k$ such that the equation $x^2 - kx + 9 = 0$ has exactly one real solution.

Find the exact solutions for the quadratic equation $2m^2-14m+23=0$ using the quadratic formula.

For the function $y=(x-4)(x-4)$ , how many unique $x$ -intercepts does the graph have?

One of the solutions must be $0$

There is exactly one repeated solution

There are no real solutions

The solutions are $x = b$ and $x = -b$

$k = 36$ or $k = -36$

$\frac{-7 \pm \sqrt{3}}{2}$

$\frac{14 \pm \sqrt{12}}{2}$

$\frac{7 \pm \sqrt{12}}{2}$

$\frac{7 \pm \sqrt{3}}{2}$

MYP Standard Mathematics 5 Functions and Quadratic Relationships Questionbank

MYP Standard Mathematics 5 Functions and Quadratic Relationships Questionbank

MYP Standard Mathematics 5 Functions and Quadratic Relationships Questionbank

MYP Standard Mathematics 5 Functions and Quadratic Relationships Questionbank

MYP MYP Standard Mathematics Topic 5 Functions and Quadratic Relationships Questionbank