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y = x

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - x + 1 ← is in slope- intercept form

with slope m = -

Given a line with slope m then the slope of a line perpendicular to it is

= - = - = , thus

y = x + c ← is the partial equation

To find c substitute (9, 12) into the partial equation

12 = 12 + c ⇒ c = 12 - 12 = 0

y = x + 0 , which simplifies to

y = x

2,600 divided by 80 = 32.5

step-by-step explanation:

john got lost so he didn't know what to do and it was crazy because he didn't except it

step-by-step explanation:

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