When you write a function in the form
, y is the dependent variable, and x is the independent variable.
So, if b is the independent variable, it means that we have to solve the expression for r.
To do so, we perform the following steps: start with

Add 12 to both sides

Divide both sides by 4:

So, we wrote the expression in the form
, which means that r is the dependent variable and b is the independent variable, as requested.
We know that one row contains four units each and there are five rows. To find out the area of the shape, we do:
5 (row) × 4 (units) = 20 units
So the area of the shape is 20 units².
Answer:
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The required x- and y- coordinates of point e, which partitions the directed line segment is (17, 11)
<h3>Midpoint of coordinates</h3>
The middle point of two coordinates is known as its midpoint. The formula for calculating the midpoint of a coordinate is expressed as:

Given the coordinate points J(-15, -5) and k(25, 15) partitioned in the ratio 1:4, the x- and y- coordinates of point e, which partitions the directed line segment is given as:

Hence the required x- and y- coordinates of point e, which partitions the directed line segment is (17, 11)
Learn more on midpoint here: brainly.com/question/5566419
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