What type of triangle is formed by joining the points d(7,3), e(8,1) and f(4,-1)

Calculate the lengths of the sides of the triangle:

The triangle has three different sides, so it's a scalene triangle.

Now if c is the longest side of the triangle, and a and b are the shorter sides, then:

- if , the triangle is right

- if , the triangle is acute

- if , the triangle is obtuse

The longest side is 5.

The square of the longest side is equal to the sum of the squares of the shorter sides, so it's a right triangle.

The triangle is a right scalene triangle.

the answer to the question is a  

it has the same slope and the same y-intercept.

associative property hopes this ! : )

step-by-step explanation: