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Tonight’s Homework. Memorize all Trig stuff!! Pg. 367#9 – 24 all. 6.6 Applying Trig Functions. Applications. Determine the angle between the x – axis and the line y = -3 x + 4. - PowerPoint PPT Presentation
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Tonight’s Homework
• Memorize all Trig stuff!!Pg. 367 #9 – 24 all
6.6 Applying Trig Functions
Applications• The terminal side of Ɵ is in
QI and lies on the line y = 1.5x. Find all trig function values of Ɵ and the measures of Ɵ and Ɵ’.
• Determine the angle between the x – axis and the line y = -3x + 4.
6.6 Applying Trig Functions
Definitions• The angle between the x –
axis in the positive direction and a line is called the angle of inclinations of the line.
• The terms angle of elevation or angle of depression are used to describe the angle between the line of sight and the horizontal.
6.6 Applying Trig Functions
More Applications! • The angle of elevation of
the top of a building from a point 100 ft away from the building on level ground is 65°. Find the height, h, of the building.– Draw a picture– Label knowns– Determine unknown– Solve the triangle
• From the top of a 100-ft building, a man observes a car moving toward him. If the angle of depression of the car changes from 22° to 46° during the period of observation, how far does the car travel?