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Sladkaya [172]
2 years ago
15

It’s for pre college

Mathematics
1 answer:
lara [203]2 years ago
3 0

Answer:

Step-by-step explanation:

y = mx + b for line through (7, 4) and perpendicular to -5x + 9y = - 71

perpendicular lines have negative reciprocal slopes

-5x + 9y = - 71

9y = 5x - 71

y = (5/9)x - 71/9

so a perpendicular line will have slope -9/5

y = (-9/5)x + b

plug in our desired point

4 = (-9/5)7 + b

4 = -63/5 + b

20/5 = -63/5 + b

b = 83/5

y = (-9/5)x + 83/5

5y = -9x + 83

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Figure PQRS is a rectangle.
il63 [147K]

Answer:

4th option.

Step-by-step explanation:

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Scorpion4ik [409]

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Hello!

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