Question

Medals

Answer 1

One of the endpoints of the base of a triangle is at P(4, 5). The midpoint of the base is at (1, 1). Erik performed the steps shown to find the coordinates of the other endpoint of the base.

Step 1. x1 = 4, y1 = 5, x = 1, y = 1
Step 2. x is equal to all of x1 plus x2 by 2 and y is equal to all of y1 plus y2 by 2.
Step 3. 1 is equal to all of 4 plus x2 by 2 and 1 is equal to all of 5 plus y2 by 2.
Step 4. 2 = 4 + x2, 2 = 5 + y2
Step 5. 0 = 4 + x2 , 0 = 5 + y2
Step 6. x2 = -4, y2 = -5

In which step did Erik first make an error?

Step 2, because he used the formula to find the length of a line segment.

Step 3, because he substituted the values incorrectly in the formula.

Step 4, because he multiplied both the equations by 2 instead of adding.

Step 5, because he subtracted 2 from the left side of the equations and not from the right.

Answer 2

@isiah

Answer 3

how would you determine the midpoint? match that to the ficticious persons method and see what fits

Answer 4

go with step 5

Answer 5

hello

Answer 6

sorry had to go to the bathroom

Answer 7

XD any more

Answer 8

ya one sec

Answer 9

i will try to explain them better sry