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I NEED HELP ON THIS ASAP!!! IT'S DUE TONIGHT

I NEED HELP ON THIS ASAP!!! IT'S DUE TONIGHT-example-1
I NEED HELP ON THIS ASAP!!! IT'S DUE TONIGHT-example-1
I NEED HELP ON THIS ASAP!!! IT'S DUE TONIGHT-example-2
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User Dado
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1 Answer

4 votes

Answer:

First Problem:

Transformation: Reflection across the x-axis, shift 2 units rightward

Equation: g(x)=-5^(x-2)

Second Problem:

Transformation: Reflection across the y-axis, shift 4 units upward

Equation: 10^-x+4

Explanation:

Imagine folding a piece of paper and using the x or y axis as the crease marks. By folding them and comparing them, we can find out whether it is either the x-axis, y-axis, or both-axis. Then, we move the graph, to match the position in the second picture.

As for equations, exponential functions have the parent function of y=b^(x+c)+h. By plugging in any points given, let's say (1,5), we can see that 5=b^1 and simplifying shows 5=b. Therefore, the function is y=5^x. Using that first equation, we transform it. If over the x-axis, convert y=b^x to y=-b^x. If over the y-axis, convert y=b^x to y=b^-x. For horizontal shift, if going rightward, it is x-c. If going leftward, it is x+c. For vertical shift, if going up, b^x+h. If going down, b^x-h.

If unsure, plug-in points to see if your answer checks out with the equation :)

answered
User Dima Tisnek
by
8.1k points

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