Which of the following functions best describes this graph??

Answer:
A) y = x² - 8x + 15
Step-by-step explanation:
We can see that the roots of this equation (the x-intercepts) are at x = 3 and x = 5. Plugging this into factored form gives us
y = (x-r₁)(x-r₂)
y = (x-3)(x-5)
Multiplying, we have
y = (x)(x)-5(x)-3(x)-3(-5)
y = x²-5x-3x--15
y = x²-8x+15
The graph is a parabola, hence a quadratic function with x intercepts at 3 and 5 given by the equation y = (x - 3)(x - 5)
An equation is an expression that shows the relationship between two or more numbers and variables
From the graph we can see that it is a parabola, hence a quadratic function. There are x intercepts at 3 and 5, hence:
y = (x - 3)(x - 5)
Find out more on equation at: https://brainly.com/question/2972832