Question

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

Step 1: d = StartRoot (negative 7 minus (negative 7)) squared + (negative 4 minus (negative 2)) squared EndRoot


Step 2: d = StartRoot (negative 7 + 7) squared + (negative 4 + 2) squared EndRoot


Step 3: d = StartRoot (0) squared + (negative 2) squared EndRoot


Step 4: d = StartRoot 0 + 4 EndRoot


Step 5: d = StartRoot 4 EndRoot


Therefore, d = 2.


Which best describes the accuracy of Tyree’s solution?

Tyree’s solution is accurate.

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

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

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

Answer 1

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

Step-by-step explanation:

I got it right,

Hope this Helps!

Answer 2

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

Step-by-step explanation:

to find the distance between two point A(-4, -2) and B(-7, -7) we use the following distance formula

`d=\sqrt{(x_(2) -x_(1))^2+(y_(2)-y_(1) )^2 \\\\`

x1=-4, x2=-7

y1=-2, y2=-7

so,

`d=√((-7-(-4))^2+(-7-(-2) )^2\\)\\\\d=√((-7+4)^2+(-7+2)^2 )\\\\d=√((-3)^2+(-5)^2 )\\\\\\\\d=√(9+25)\\ \\d=√(34)`