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Dafna11 [192]
2 years ago
9

What line is perpendicular to y=x+9

Mathematics
1 answer:
Alisiya [41]2 years ago
6 0

Answer:

y= –1/x

Step-by-step explanation:

Perpendicular = gradients are the inverse of each other or in other words, gradient 1×gradient 2 = –1

Examples of perpendicular gradients:

2 and –1/2

2/4 and -4/2

When inversing a number:

Change the sign (– to +/ + to –)

Swap the numerator with the denominator (1/2 becomes 2/1, or simply 2)

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