Question

What is the length of the line AB? Show the calculation

Answer 1

Answer:

hey mate here is your answer

Step-by-step explanation:

→ we have A  = ( -1,3) , B = ( 4,-9)

. we know that the distance between two points

→ d =√ ( x 2 - x 1) ² + ( y 2-y1 )²

→ ∴ , d =√ ( 4 -( -1) ) ²+ ( -9-3)²

   →    d= √( 4 + 1) ² + (-12) ²

  →     d = √(5)²+ ( -12)²

  →     d = √ 25 + 144

  →     d = √169

     →  d = 13 units

→hence ,this is the answer

thank you

Answer 2

Correct option is C)

We have,

A=(−1,3),B=(4,−9)

We know that the distance between two points

d=

(x

2

−x

1

)

2

+(y

2

−y

1

)

2

Therefore,

d=

(4−(−1))

2

+(−9−3)

2

d=

(4+1)

2

+(−12)

2

d=

(5)

2

+(−12)

2

d=

25+144

d=

169

d=13 units