Red and Green were both incorrect. Help pls

Why do you think red or green has the smallest value for b? Even if you're just guessing, they should be the last ones you'd choose.

For every graph except blue, a=1, so the value of b is the sole variable between those 4. Red and green are the intermediate values, given that they fall between black and yellow, so they couldn't be the smallest or largest value.

b is the exponential term. Since none of the graphs are decaying, you know b has to be 1 or greater. Look for the one exponentially increasing the slowest (the one closest to a straight line, which would be b=1).
To me, that looks like blue. Black has the largest value for b, yellow a bit lower than that, red and green the same.

>>369087
>none of the graphs are decaying
What image are you looking at?

>>369078
I'm going to choose orange(looks yellow)
I got it right! Thanks anon I guess I forgot negative numbers existed

>>369062
>largest b
Means it increases the quickest.
>smallest b
If b=1, you've got a straight line. Between 1 and 0, b results in a decay and the line goes toward 0 as you go forward. Smaller values make it approach 0 faster. So yellow is the answer here.
>largest a
Suppose x=0. ab^x just becomes a. Clearly blue wins here.
>I only needed one answer smartass!
I'm just doing this for anyone else who wants to understand what's going on. And this is something where if you know how it works, all 3 questions should be equally easy.