An Equation of the Terminal Side of an Angle θ $- 7 x - 5 y = 0 , x \geq 0 ; \quad$

question 184

Multiple Choice

An equation of the terminal side of an angle θ in standard position is given along with a restriction on x. Find the
indicated trigonometric function value of θ. Do not use a calculator.
- $- 7 x - 5 y = 0 , x \geq 0 ; \quad$ Find $\cos \theta$

• A) \(\frac { \sqrt { 74 } } { 5 }\)
• B) \(- \frac { 7 } { 5 }\)
• C) \(\frac { 5 \sqrt { 74 } } { 74 }\)
• D) \(- \frac { 5 } { 7 }\)

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