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Pre Calculus

(Graph with line from (-5,0) to (7,2))

Find the direction angle of vector v to the nearest tenth of a degree.

Equation editor does not include the grouping symbols "<" and ">" that are necessary for writing a vector in component form. For this question, use braces to write a vector in component form. For example, the vector <2,3> should be written as {2,3}.

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  1. direction vector = <7+5, 2-0> = <12,2>

    direction angle = tan^-1 (2/12) = appr 9.5° or appr 0.165 radians

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