
Concept explainers
(a)
Sketch the angle 2700 in standard Position.
(a)

Explanation of Solution
Given:
The angle 2700
Concept Used:
An angle is in "standard position" when the vertex is at the origin and the initial side of the angle is along the positive x-axis.
Calculation:
A Positive angle measured in counter clockwise direction from the Horizontal (x-axis). ![]() | ![]() |
Thus, the initial side of the angle 2700 is coincides with Positive side Horizontal Axis and the Terminal Side of the angle coincides with the negative sides of the Vertical axis.
(b)
Sketch the angle − 1200 in standard Position.
(b)

Explanation of Solution
Given:
The angle − 1200
Concept Used:
An angle is in "standard position" when the vertex is at the origin and the initial side of the angle is along the positive x-axis.
Calculation:
Calculation:
A Negative angle measured in clockwise direction from the Horizontal axis . ![]() | ![]() |
Thus, the initial side of the angle − 1200 is coincides with Positive side Horizontal Axis and the Terminal Side of the angle lies one − third way between the negative side of Vertical axis and the Negative side of the Horizontal axis.
Chapter 4 Solutions
Precalculus with Limits: A Graphing Approach
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