Answer:
slope = - 
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (2, 5) and (x₂, y₂ ) = (8, 3)
m =
=
= - 
Answer:
9
Step-by-step explanation:
2 = -7 + s -->
9 = s
Rate of change =

So grab 2 Y's first and then subtract
7 - 3 = 4
and do the same for X
4 - 2 = 2
Simplify
4/2 = 2
2 is your rate of change
(a) a rectangular prism
each one has dimensions l = 2.4 ,w = 1.2 / 3 = 0.4 and h = 1.8 / 3 = 0.6 m
(b) total volume of concrete needed is 6 * 2.4 * 0.4 * 0.6 = 3.456 m^3
Answer:
There is really no answer to this because this is the furtherest you can go to simplify this expression. I can help solve it if you give me more information, or you tell me what the value of a and b is so I can solve it.
Thanks!