Quadratics

Question 1

What do you call the values of x of a quadratic function where f(x)=0

Answer 1

The roots

Question 2

The set of possible inputs for a function is…

Answer 2

The domain

Question 3

The set of possible outputs of a function is..

Answer 3

The range

Question 4

What do you call the point where the gradient changes from positive to negative, or negative to positive

Answer 4

The vertex, or the turning point, or minimum or maximum

Question 5

How can you find the coordinates of the vertex?

Answer 5

Use the calculator!! It will tell you Min/Max

Question 6

What type of turning point do you get if the coefficient of x squared is positive

Answer 6

Minimum

Question 7

What type of turning point do you get if the coefficient of x squared is negative

Answer 7

Maximum

Question 8

If f(x) = a(x + p)^2 + q, what is the vertex?

Answer 8

(-p, q)

Question 9

If f(x) = a(x + p)^2 + q, what is a?

Answer 9

The coefficient of x^2 when f(x) is in the form ax^2 + bx + c = 0

Question 10

What do you call the values of f(x) of a quadratic function where x=0

Answer 10

The y-intercept