For questions 1-3, decide for each graph whether the equation shown is a function. Label each graph

Mathematics

1 answer:

ruslelena [56]3 years ago

4 0

Answer: Not a function

Step-by-step explanation:

The graph fails the vertical line test. In other words, when you draw a vertical line anywhere through the curve, the line passes through two points.

Bonus: If you do not have a graph, it is not a function if there is one x-value that has two different y-values.

For example, If (1, 2) and (1, -2) lie on the curve, then it is NOT a function because the x-value (1) has two different y-values (2 & -2).

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The wheel of a bike has a diameter of 27 inches. Find the circumference of the wheel. Round your answer to the nearest whole num

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By definition, the circumference is given by:
C = 2 * pi * R
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R: Radio
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Two cargo ships spot a signal fire on a small island. The captains know they are 140 feet

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The distance from Ship B to the signal fire at point C is $405.4 \mathrm{ft}$

Explanation:

It is given that two ships A and B are at a distance 140 ft from each other.

The angle formed by ship A is 82º and the angle formed by ship B is 78º.

To determine the distance from ship B to the signal fire at point C, we need to know the another angle.

Hence, we have,

$\begin{aligned}\angle A+\angle B+\angle C &=180^{\circ} \\82^{\circ}+78^{\circ}+\angle C &=180^{\circ} \\160^{\circ}+\angle C &=180^{\circ} \\\angle C &=20^{\circ}\end{aligned}$