Can anyone with either one of these

slope-point form:
we need the slope (m) and a point.
y-y₀=m(x-x₀)
Given two point A(x₁,y₂) and B(x₂,y₂), the slope of the line  is :
m=(y₂-y₁) /(x₂-x₁)

Example 3:
we can take two points:
A(12,2)
B(13,7)
m=(7-2) / (13-12)=5/1=5

therefore:
y-2=5(x-12)
y-2=5x-60
y=5x-60+2
y=5x-58

y=5x-58

Example 4:
we can take two points.
A(0,0)
B(3,1)
m=(1-0)/(3-0)=1/3

Therefore:
y-0=1/3(x-0)
y=x/3

y=x/3

312 cube inches  

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

The image below represents three planters that are filled with soil. Find the total volume of soil in the three planters. Planter A is 14 inches by 3 inches by 4 inches. Planter B is 9 inches by 3 inches by 3 inches.  

Please have a look at the attached photo.  

My

Planter A is 14 inches by 3 inches by 4 inches

=> the volume of planter A is:

V(A) = 14 inches * 3 inches * 4 inches

= 168 cube inches

Planter B is 9 inches by 3 inches by 3 inches

=> the volume of planter B is:

V(B) = 9 inches * 3 inches *3 inches  

= 81 cube inches  

As we can see in the photo, the height of planter C = 13 - 3 -3 = 7 inches

=> the volume of planter C is:

V (c) = 7 inches by 3 inches by 3 inches

= 63 cube inches  

Hence, the total volume of soil in the three planters is:

V(A)  + V(B) + V(C)

= 168 + 81 + 63

= 312 cube inches