Step-by-step explanation:

Hence, coordinates A(2, 1), B(7, 1), C(2, 4) form a triangle.
Answer: (3, -1)
Step-by-step explanation:
Reflecting over y = -x maps
.
So, 
327+425+550+486 is 1788 so to get the answer you need to divide it by 6
You would be expected to pay 3,130.00 (3,125.14) Euros.
Answer:
y = 2/3x + 2
Step-by-step explanation:
Slope intercept form is y=mx+b where m is the slope and b is the y intercept.
Given 2 points you can find the slope using (y-y1)/(x-x1)
m = (-2-4)/(-6-3) = -6/-9 = 2/3
To find b use one of the points and m and plug into the slope intercept form and then solve for b.
y=mx+b
4=2/3(3) + b
4=2 + b
b=2
Now we can write the final equation as : (plug m and b back in)
y = 2/3x + 2