The answer would be B) x=1. The axis of symmetry is the (imaginary) line where the two sides of the parabola that runs through the center, creating two perfectly identical halves. Because the middle of this symmetry's x-value is 1, the axis of symmetry is 1.
Hope this helped :) (sorry if the wording is confusing, I'm nit very good at explaining things.)
The answer is D all u had to do was multiply and divide
Given:
To find:
The value of .
Solution:
We know that,
Putting the given values, we get
Taking square on both sides, we get
Therefore, the value of is .
Since the price is increasing by percentage, rather than a constant rate, we will be using the exponential equation format, which is y=ab^x (a = initial value, b = growth/decay)
Since the value was $590 in the year 2000, 590 will be our a variable.
Since the value is *increasing* by 35%, add 1 and 0.35 (35% in decimal form) together to get 1.35. 1.35 is going to be your b variable.
Putting our equation together, our equation is f(x) = 590(1.35)^x