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+# Unit 1: Exponential and Logarithmic Functions
+
+## Review
+
+A function is a relation where each x-value maps to exactly one y-value.
+
+If given a function in the form $`y = af[k(x-d)] + c`$, then let $`(x,y)`$ be the original points, the new points will be $`(\dfrac{1}{k}x+d, ay+c)`$.
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