Question

A graph shows four quadrants with the x-axis and y-axis both ranging from negative 5 to positive 5 in increments of 1. Unlabeled data points marked are at (-2, 1), and at (2, 4). A straight line joins the two lines with a positive slope.
Apply the Pythagorean Theorem to find the length between the two points. Round your answer to the nearest hundredth, if necessary.
A. 9
B. 5.57
C. 41
D. 6.40

Answer 1

Distance = sqrt[(2 - (-2))^2 + (4 - 1)^2] = sqrt[4^2 + 3^2] = sqrt[16 + 9] = sqrt25 = 5.

The correct distance is 5. That value does not appear among the provided choices (the closest choice is B: 5.57).