Question
Find all values of $x($ if any $)$ where the tangent line to the graph of the given equation is horizontal. HINT [The tangent line is horizontal when its slope is zero.]$$y=-x+1$$
Step 1
The equation is in the form of $y = mx + c$, where $m$ is the slope of the line and $c$ is the y-intercept. Here, $m = -1$ and $c = 1$. This means that the line has a slope of -1 and it intercepts the y-axis at 1. Show more…
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