The number 9 represent the constant in the quadratic equation.
According to the statement
We have to explain that which number represent the constant in the given equations.
So, For this purpose, we know that the
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
From the given information:
The equation is a 15x^2 + 2x + 9
And we know that the it is a quadratic equation.
And
Quadratics can be defined as a polynomial equation of a second degree, which implies that it comprises a minimum of one term that is squared.
And in this equation, The number 9 represent the constant.
So, The number 9 represent the constant in the quadratic equation.
Learn more about equation here
brainly.com/question/14323743
#SPJ9