Question

Tyree is determining the distance of a segment whose endpoints are A(–4, –2) and B(–7, –7).

Step 1:


Step 2:


Step 3:


Step 4:


Step 5:


Therefore, d = 2.





Which best describes the accuracy of Tyree’s solution?


a Tyree’s solution is accurate.


b Tyree’s solution is inaccurate. In step 1, he substituted incorrectly.


c Tyree’s solution is inaccurate. In step 2, he simplified incorrectly.


d Tyree’s solution is inaccurate. In step 3, he added incorrectly.

Answer 1

b Tyree’s solution is inaccurate. In step 1, he substituted incorrectly.

Explanation:

I just took the quiz on edge

Answer 2

Option b Tyree’s solution is inaccurate. In step 1, he substituted incorrectly.

Explanation:

we know that

the formula to calculate the distance between two points is equal to

`d=\sqrt{(y2-y1)^(2)+(x2-x1)^(2)}`

we have

`A(-4,-2)\\B(-7,-7)`

step 1

substitute the values in the formula

`d=\sqrt{(-7-(-2))^(2)+(-7-(-4))^(2)}`

step 2

Simplify

`d=\sqrt{(-7+2)^(2)+(-7+4)^(2)}`

step 3

`d=\sqrt{(-5)^(2)+(-3)^(2)}`

step 4

`d=√(25+9)`

step 5

`d=√(34)`

therefore

Tyree’s solution is inaccurate. In step 1, he substituted incorrectly.