Question

Given: r||s

Prove:mr = ms
1. r | s
2. m₂ = - = -b
= 응음 =- 응
ms =
5. m
3. distance from (0, b) to (0, a) equals the distance from (c,d) to (c, 0) definition of parallel lines
4.d-0=b-a
application of the distance formula
substitution property of equality
inverse property of addition
substitution property of equality
6. m
=
=
(b-a)-b
с
a
C
7.m, = ms
Which step of the proof contains an error?
OA.
Step 4
OB.
Step 5
OC. Step 2
OD.
Step 6
given
G
application of the slope formula

Answer 1

Step 6 of the proof contains an error.

In Step 6, the equation shown is m = (b-a)-b / c-a. However, this equation does not correctly represent the slope of the line. The correct slope formula is m = (d-c)/(b-a), where (c,d) and (a,b) are points on the line.

Therefore, the error is in Step 6 of the proof.

Explanation: