Which of the following functions illustrates a phase shift? A. y = 1 + sinx
B. y = tan 2x
C. y = -2-COS(X - pi)
D. y = 3 COS4x

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Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.