4. The graph (right), which has vertex (1, 9), is of: f(x) = a cos(x+ k)....

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4. The graph (right), which has vertex (1, 9), is of: f(x) = a cos(x+ k). 10 i. Write down the value of a. (1 mark) ii. What is the phase shift? (1 mark) 9. iii. Write down the equation for f. f(x) (1 mark) 4. iv. What are the coordinates of the visible intercept of 3. f with the x-axis? (2 marks) 2. v. What is the period of f? (1 mark) ot A -1 -2 4. The graph (right), which has vertex (1, 9), is of: f(x) = a cos(x+ k). 10 i. Write down the value of a. (1 mark) ii. What is the phase shift? (1 mark) 9. iii. Write down the equation for f. f(x) (1 mark) 4. iv. What are the coordinates of the visible intercept of 3. f with the x-axis? (2 marks) 2. v. What is the period of f? (1 mark) ot A -1 -2

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Detailed solution is given in attached figures jii Equation for is f x 9 Cos x 098 x is in ra... View the full answer