You mean y = b^x.
By plugging different values of x, we find different y-values forming points in the form (x, y).
After 2 or 3 points, we can clearly see that the graph of y = b^x passes through the point (0, 1) and extends forever in the upward direction through quadrant 1.
The first two are true and the last one is false
1 3
----- = ----
5 x
In a proportion, u cross multiply. Take the denominator of the first fraction and multiply it by the numerator of the second fraction. Then take the numerator of the first fraction and multiply it by the denominator of the second fraction.
(5)(3) = (1)(x) ...now multiply
15 = x
and u will see from the answer 1/5 = 3/15 that these are equivalent fractions because that is all proportions are..they are just equivalent fractions.
Here is another one...
2/11 = x/22 .....cross multiply
(11)(x) = (22)(2)
11x = 44
x = 44/11
x = 4
2/11 = 4/22.....equivalent fractions
All you have to do is subtract.
7 3/8 - 3 10/12
Change it into a common denominator: 24
7 3/8 = 7 9/24
3 10/12 = 3 20/24
7 9/24 - 3 20/24 =
6 33/24 - 3 20/24 = 3 13/24
Answer = 3 13/24 ( 85/24 )
~Hope this helped~