Which of the following functions best describes this graph??
2 answers:
Answer:
The correct answer is b
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
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