Exponential functions look somewhat similar to functions you have seen before, in that they involve exponents, but there is a big difference, in that the variable is now the power, rather than the base. Previously, you have dealt with such functions as<span> f(x) = x2</span><span>, where the variable </span>x<span> was the base and the number </span>2<span> was the power. In the case of exponentials, however, you will be dealing with functions such as </span><span>g(x) = 2</span>x, where the base is the fixed number, and the power is the variable.
<span>Let's look more closely at the function </span><span>g(x) = 2</span>x<span>. To evaluate this function, we operate as usual, picking values of </span>x<span>, plugging them in, and simplifying for the answers. But to evaluate </span>2x<span>, we need to remember how exponents work. In particular, we need to remember that </span>negative exponents<span> mean "put the base on the other side of the fraction line".
If you need even more help here : </span>http://www.purplemath.com/modules/expofcns.htm
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Answer:
10
Step-by-step explanation:
the explanation is in the picture
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The given distance driven by each family on vacation is-
The Jacksons drove 835 miles.
The Simms drove 947 miles.
The Chens drove 100 miles further than the Jacksons that is they drove 935 miles.
Now comparing all three distances, we get 947 miles as the highest distance driven.
Hence the Simms drove the longest distance.
