The family left at noon which is 12:00.
Add 4 hours for the trip.
Add 1 hour for lunch.
Add 2 hours for the amusement park.
That's 7 hours after 12:00 or 7:00.
If you don't understand, I suggest examining a clock.
Divide both values by two to get a unit rate of 8 minutes per mile. Multiply 8 by 5 to get 40 minutes
Answer:
D
Step-by-step explanation:
notice the circle around the triangle
Answer:
(-1, 2) — derivative is zero
Step-by-step explanation:
A critical point of a function is a point at which the slope is <em>zero</em> or <em>undefined</em>. (The critical point must actually be in the domain of the function. Vertical asymptotes are <em>not</em> critical points.)
You find the answer by looking for points on the graph where a tangent to the function is horizontal or vertical.
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In the given graph, the curve approaches horizontal near the point (-1, 2), so it is reasonable to estimate that that point is a critical point.
The attached graph also shows the inverse function. That has a critical point at (2, -1), where the slope is undefined (a tangent to the graph is vertical).
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The graph of a circle or ellipse does not pass the vertical line test, so is not a function. However, the graph still has critical points where the tangents are vertical or horizontal. The second attachment shows those critical points.
The answer is actually 1.571