the first question i have is: the function of f is defined by . i know how to find where it crosses the x axis, but what method do i use to find the interception of the y axis?

the second question is (note the info in the first question): the graph of y = f(x) is translated by one unit in the positive x-direction and 4 units in the positive y-direction to give the graph of y = g(x). find an expression for g(x) in the form , where a, b and c are integers.

how would i go about tackling these questions? with particular attention to the second one if possible. thankyou,

mark

ps- the answer to the second is