Intercepts and gradients

This task is about the gradient and intercepts on a graph.
Below is a graph of the function y = x - 1.

Graph of y = x - 1

graph of the function, y equals x minus 1
a)
What are the co-ordinates of the
 
 
i)
 
ii) 
x-intercept? (         ,         )
 
y-intercept? (         ,         )
 
b)
Calculate the gradient (or slope) of the line.
 
 
 
 
 
 
The gradient is __________
 
c)
 
On the graph above, plot the function: y = 3x