Answer:
slope = - 1
Step-by-step explanation:
Calculate the slope m using the slope formula
m = 
with (x₁, y₁ ) = (4, - 1) and (x₂, y₂ ) = (- 1, 4)
m =
=
= - 1
The answer is only 0 and 3.9
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The simplified fraction is 62/7
The area of triangle ABC is the amount of space on the triangle
The area of the triangle is 54.84 square units
<h3>How to determine the area of triangle ABC</h3>
Start by drawing the triangle (see attachment)
Next, calculate the measure of angle B using the following tangent ratio

This gives

Take the arc tan of both sides

Multiply by 2

Next, calculate the length of side AD using the following equation

This gives


The area of the triangle is then calculated as:

This gives


Hence, the area of the triangle is 54.84 square units
Read more about areas at:
brainly.com/question/24487155