Answer:
b= -1
Step-by-step explanation:
48 =. 56 +8b
-56 -56
---------------------------------
-8 = 8b
Divide 8 on both sides
-1=b
Answer:

Step-by-step explanation:
<h2><u>Lesson : Reducing by factors:</u></h2><h2><u /></h2>
Given :


When you have to reduce a number by a certain factor, you must divide the area with the amount that it is reducing from, therefore,


D
graph becomes slimmer, so definitely be multipled 1/2
You have the following function:

Derivate implictly the previous expression, as follow:

Where you have used that:

Then, the implicit derivative of the given expression is:

Next, solve for y' as follow:
