**Vertical line test**: If no vertical line touches its graph twice then…
Vertical line test: If no vertical line touches its graph twice then is a function (one for each ). Horizontal line test: If no horizontal line touches its graph twice then is invertible because ______.
This exercise has fill-in blanks from its source book and no answer key.
Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §4.3 Inverse Functions and Their Derivatives, #16
No hints for this one.
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