Answer:
Y-intercept of the table = -3 and y-intercept of the graph is = -1.
Intercept of the graph is greater than the intercept of the table.
Step-by-step explanation:
Part (a).
To find the intercept of the table we have to choose two points.
Let
and 
Using point intercept form we will calculate the slope(m).

So,
⇒
Plugging the values.
⇒ 
Using slope-intercept form we can calculate the y-intercept.
Slope intercept form 
Y-intercept = 
Then, 
Plugging the values of
in slope intercept form.
We have,

Y-intercept of the values given in the table = -3.
Part (b).
Y-intercept of the graph can be calculated by following the above procedure or simply just by looking onto it.
As the graph is passing through y = -1,so y-intercept of the graph = -1.
Y-intercept of the graph is greater than the y-intercept of the table values.