The angle is obviously larger than a right angle because it is bending outwards. This means it is greater than 90°, so ∠2 must be an obtuse angle.
I'm not sure on this one but try .30 and .90 but don't count on it to much
Find x-intercept and y-intercept then you can draw the graph.
For example, the first question.

To find the y-intercept, x = 0
So substitute x = 0 in the equation.

[Note]: You don't need to find the y-intercept, because from,
a is slope and b is y-intercept, you know b then you know y-intercept. For example b = 2 then y-intercept is at 2.
To find the x-intercept, y = 0

Therefore, y-intercept = 2 and x-intercept = 2/3
(Try do another problems, just do the same. When you want to find the y-intercept, just look at the value of b or substitute x = 0 and When you want to find the x-intercept, just substitute y = 0 then solve for x.)
Answer:
264,000
Step-by-step explanation:
6,600
x 40
_______
264,000
A is 400
b is 1000
c is 3500
d is 40000