There is definitely a standard procedure for solving such problems. We already know a formula that
<span><span>loga </span>x = y
implies
a ^x = y
Now getting to the problem in hand, we can write it as
9^x = 27
(3^2)^x = (3)^3
(3)^2x = (3)^3
Then
2x = 3
x = 3/2
I hope that the procedure is clear enough for you to understand. I also hope that this is the answer that has actually come to your desired help.</span>
Y=a(x-1)^2 -17 is the equation of the parabola.
at (0,16), 16=a(0-1)^2 -17. Solve for a = 33.
Equation is then y=33(x-1)^2-17 so when y=0,
(x-1)^2 = 17/33
x-1 = + and - square root of 17/33
x = 1.7177 and 0,2823 as the intercepts
The right answer is not among those offered. The domain is
.. {-9, -6, 4, 7}
___
The 4th selection {4, 7} is the best of those offered, but it is not correct.
The simplest form of 21/35 is 3/5
5-2 is 3. Subtract three from both sides. 2x=8. Divide by 2. X=4