Question

The city designers drawing the road map for new housing development hurricane Ln runs through the coordinates (11, 5) and (-1, 1) on the map. Trammel-Fresno Rd. is going to run perpendicular to Hurricane Ln. What is the slope of Trammel-Fresno?

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Answer 1

-3

Explanation:

Use slope formula to find the slope of the first road:

(y2 - y1) / (x2 - x1)

(1 - 5) / (-1 - 11)

-4 / -12

1 / 3

The slope of a line perpendicular to this line would just be the negative reciprocal of the slope:

-3 / 1 or just -3