The first/selected graph matches g(x)=0.2*2^x
<span>a/b = 3/5 ----- a = (3b)/5
a + b = 136 --- (3b)/5 + b = 136
3b + 5b = 680
8b = 680
b = 85
a = (3b)/5 = (3 * 85)/5 = 51
a = 85 and b = 51</span>
This method can be very useful, so please try to remember it
There are any number of ordered pairs that work for this equation. Below are some examples.
(0, -18) (2, -10) (5, 2)
In order to find these and any others, you simply select a value for x and plug into the equation to find y. Below is an example.
y = 4x - 18
y = 4(0) - 18
y = 0 - 18
y = -18
(0, -18)
