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What is the right choice for question 1) ? http://postimg.org/image/kasvxkp9z/
1 Answer | add yours
High School Teacher
y = a`cos(x-c)`
a - represents amplitude; c represents horizontal shift
therefore an amplitude of `(1/2)`
and a phase shift of `pi/4`
means the equation should be: y = `(1/2)cos(x -pi/4)`
which is choice "b"
Posted by baxthum8 on August 18, 2013 at 12:02 AM (Answer #1)
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