3. For this one, I used an online graphing calculator to find which equation corresponds to the graph shown.
The equation that I found to work was option A, which was f(x) = 8(1/2)
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.
11. Each time one hour passes, the bacteria count approximately doubles, or comes out with a little less than it would be if it was doubled.
After doubling the values three more times to get 8 hours, the option that was closest was C, 181,630.
12. Again, with this one I used an online graphing calculator to figure out which equation matched the values shown on the table.
In doing this, I found that the one that matched best was option G, which is v(t) = 27,354(0.776)

.
Hope this help!