Which function is a quadratic function?

An equation having second degree is a quadratic function

In mathematics a quadratic equation, quadratic function or simply quadratic polynomial is the one which has second degree. This type of function always give us two values when we solve it. We can identify quadratic function by looking at the variables. The highest power that a variable can have is 2. The variable with second power is written first followed by the variable with first power and then comes the constant for example Y= X² + X =2 is a quadratic function.

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.