Question

What is the distance between point A and point B? A) 4 units B) 3 units C) 5 units D) 3.5 units

Answer 1

Step-by-step explanation:

Use the formula D2 = X^2 + Y^2 to find the squared distance between two points. If the two points have coordinates (-3, 7) and (1, 2), then the difference between 7 and 2 is 5, and so Y = 5. For example, if X = 4 and Y = 5, then D2 = 42 + 52 = 41. Thus, the square of the distance between the coordinates is 41.

y^2 means (y) x (y)

Answer 2

Answer:

C) Distance =5 units

Step-by-step explanation:

$x_1=1\\y_1=1\\x_2 =5\\y_2 = 4\\\\d = \sqrt{(x_2-x_1)^{2}+(y_2-y_1)^2 } \\\\d = \sqrt{(5-1)^2+(4-1)^2} \\\\d = \sqrt{(4)^2+(3)^2}\\ \\d = \sqrt{16+9}\\ d = \sqrt{25}\\ \\d = 5$