Question

Which of the following represents a quadratic function?a. y = 3x - 2b. y=6+5x + x²c. x³10x = 21d. y= 2² +4

Answer 1

Answer:
`y=6+5x+x^2`Step-by-step explanation:

A quadratic equation is an algebraic equation of the second degree.

A quadratic equation is of the form:

`y=ax^2+bx+c`

This can also be written as:

`y=c+bx+ax^2`

Comparing the equation above with each of the options, the equation that represents a quadratic function is:

`y=6+5x+x^2`

The graph of the equation y = 6 + 5x + x^2 is plotted below