To find the exact value of the indicated trigonometric function.

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

Find solution of the linear equation y = 2/3x + 1/3

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.