# Posts by darshi

Total # Posts: 8

**math**

Determine the period, amplitude and phase shift for each given function: A)y = -4 cos 3x + 5 B)y = 2/3 sin (30x-90)-10 c)y = -0.38 tan (x/3+pi/3) d)y = pi cos(2x)+ pi

*June 12, 2012*

**trig/math**

Determine the period, amplitude and phase shift for each given function: A)y = -4 cos 3x + 5 B)y = 2/3 sin (30x-90)-10 c)y = -0.38 tan (x/3+pi/3) d)y = pi cos(2x)+ pi

*June 11, 2012*

**math**

Construct the equations of the following trigonometric functions: A)A sine function with amplitude 2, period , phase shift /3 right B)A tangent function with a reflection in the y-axis, period ¾, translation up 5 units C)A cosine function with period 270°, ...

*June 11, 2012*

**math**

The value, V, of a $25000 vehicle after y years is given by V = 25000 (0.85)^y What is the rate of depreciation? What will the car be worth after 5 years? To the nearest month, how long would it take to reduce the vehicle’s value to 10% of its original amount?

*June 1, 2012*

**math**

Beginning with the function f(x) = log a^x, state what transformations were used on this to obtain the functions given below: (6 marks) p(x) = - 5/8 loga^x r(x) = log a(5 - x) t(x) = 2 log a^2x

*June 1, 2012*

**math**

Beginning with the function f(x) = log a^x, state what transformations were used on this to obtain the functions given below: (6 marks) p(x) = - 5/8 loga^x r(x) = log a(5 - x) t(x) = 2 log a^2x

*May 31, 2012*

**math**

For the curve y = log(x+3), determine the following: A) the asymptotes, B)the intercepts, C)the domain and range

*May 31, 2012*

**math**

Why do we write radian measures with a π rather than just give the decimal equivalent?

*May 20, 2012*

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