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3 years ago

12

If a ship's path is mapped on a coordinate grid, it follows a straight-line path of slope 4 and passes through point (1, 2).

2 answers:

Eva8 [605]3 years ago

8 0

Ship 1 : this has a slope of 4

ship 2 :
x + 4y - 20 = 0
4y = -x + 20
y = -1/4x + 5...slope here is -1/4

so ship 1 has a slope of 4, and ship 2 has a slope of -1/4. These ships are traveling perpendicular to each other because perpendicular lines have negative reciprocal slopes. To find the negative reciprocal of a number, flip the number and change the sign.

so take 4 or 4/1....flip it, making it 1/4....change the sign, making it -1/4. Hence, ur lines have negative reciprocal slopes and are therefore, perpendicular.

Grace [21]3 years ago

3 0

Answer:6

Step-by-step explanation:

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