If A=(4,-5) and B=(7,-9), What is the length of AB?

Distance = 5

Step-by-step explanation:

The formula for determining the distance between two points on a straight line is expressed as

Distance = √(x2 - x1)² + (y2 - y1)²

Where

x2 represents final value of x on the horizontal axis

x1 represents initial value of x on the horizontal axis.

y2 represents final value of y on the vertical axis.

y1 represents initial value of y on the vertical axis.

From the graph given,

x2 = 7

x1 = 4

y2 = - 9

y1 = - 5

Therefore,

Distance = √(7 - 4)² + (- 9 - - 5)²

Distance = √3² + (- 4)² = √(9 + 16) = √25

Distance = 5

Step-by-step explanation:

note : distance between A(X1,Y1) an B (X2,Y2) is :  

AB= √((X2 - X1)² + (Y2 - Y1)²)

in this exercice : X1 = 4   X2 = 7  Y1 = -5    Y2 = -9    continue   calculate AB

a

step-by-step explanation: