Answer:
Question 4:

Question 5:

Explanation:
Hi there!
Linear equations are typically organized in slope-intercept form:
where m is the slope of the line and b is the y-intercept (the y-coordinate of the point where the line crosses the y-axis).
Question 4
1) Determine the slope (m)
where two points that pass through the line are
and

In the graph, two easy-to-identify points on the line are (-5,4) and (5,-4). Plug these into the equation:

Therefore, the slope of the line is
. Plug this into
as the slope (m):

2) Determine the y-intercept (b)
On the graph, we can see that the line crosses the y-axis when y is 0. Therefore, the y-intercept (b) is 0. Plug this into
:

Question 5
1) Determine the slope (m)

Two easy-to-identify points are (-1,2) and (0,-3). Plug these into the equation:

Therefore, the slope is -5. Plug this into
:

2) Determine the y-intercept (b)
On the graph, we can see that the line crosses the y-axis at the point (0,-3). The y-coordinate of this point is -3. Therefore, the y-intercept (b) is -3. Plug this into
:

I hope this helps!