Line AB contains (0, 4) and (1, 6) Line CD contains points (2, 10) and (βˆ’1, 4). Lines AB and CD are

A) parallel because the slopes are the same

B) perpendicular because the slopes are the same

C) parallel because the product of the slopes is βˆ’1

D) perpendicular because the product of the slopes is βˆ’1

Respuesta :

Answer Β 

Option (A) is correct .

Reason

The formula for the slope.

[tex]Slope = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]

As given

Line AB contains (0, 4) and (1, 6) .

put in the slope formula

[tex]Slope = \frac{6 - 4}{1 - 0}[/tex]

[tex]Slope = \frac{2}{1}[/tex]

Slope of the AB is 2.

As given

Line CD contains points (2, 10) and (βˆ’1, 4).

put in the slope formula

[tex]Slope = \frac{4 - 10}{-1 -2}[/tex]

[tex]Slope = \frac{-6}{-3}[/tex]

Slope = 2

Slope of the CD is 2.

As the slope of the Β AB contains (0, 4) and (1, 6) Line CD contains points (2, 10) and (βˆ’1, 4) is 2 .

Therefore the option (A) is correct i.e the lines are parallel because the slopes are the same.

Answer:

A) parallel because the slopes are the same

Step-by-step explanation: