37. B: Negative inverse, the product of the gradients is -1
38. C: decreases
39. B: the sum of all divided by 9
The line 6x - 2y = 12 goes through -6 on the y-axis and 2 on the x-axis ie through (0, -6) and (2, 0)
The line will be solid and shaded above (towards the origin)
There are an infinite number of choices for the example points!
Here is my selection.
(0, 0) is in the solution set. 6 x 0 - 2 x 0 = 0 which is less than 12
(5, 0) is not in the solution set. 6 x 5 - 2 x 0 = 30 which is greater than 12
(2, 0) is on the line. 6 x 2 - 2 x 0 = 12
Answer:
A) $87.5
B) $164
Step-by-step explanation:
A) Marked Price (Original Price)
= 
=
=87.5
B) Marked Price (Original Price)
=
=
=164
