Answer:
The correct answer is A) 2x^2 - 8x + 7
Step-by-step explanation:
To start, we know the constant at the end must be 7, since the intercept is 7. This leaves us with just answers A and B.
Next, we know the x value of the vertex (2), should be equal to -b/2a, in which b is the coefficient of x and a is the coefficient of x^2. So, we input the values from A and B to see which one satisfies that fact.
-b/2a = x value
-(-8)/2(2) = 2
8/4 = 2
2 = 2
Since this is true, we know that A is the correct answer. We can also try it with B just to check, but it does not work.
