The exponential equation shown in the graph is the second one:
y = -3*(2)^x
Which of the equations is the one in the graph?
We know that the graph is the graph of an exponential equation of the form:
y = a*(b)^x
Now, notice that the graph intercepts the y-axis at the value y = -3, then evaluating the equation in x = 0 we will get:
-3 = a*(b)^0
-3 = a
Then our exponential equation is of the form:
y = -3*(b)^x
There is only one with that shape, which is the second option:
y = -3*(2)^x
Learn more about exponential equations:
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