Question

dang sorry looked at wrong question here is real question
what is perpendicular to -2/3x+7 and passes through (2,1)

Answer 1

perpendicular slopes are reciprocals with a change of sign

i.e. if the line in question is y = 2x

a perpendicular line would be y = -1/2x

then plug in the point (2,1) into the equation y = mx + b and you find b

Answer 2

when i plugged it in i got 1=3 wat do i do after?

Answer 3

what did you get for the perpendicular slope m?

Answer 4

you have one unknown, b.

after you have figured the slope, you have x and y

so plug in to y = mx + b. solve for b.

Answer 5

my slope was 3/2x

Answer 6

ok thats correct.

plug in (2,1)

so you should have

\[y = mx + b\] and if you plug in correctly it will become

\[1 = (3/2)*2 + b\]

solve for b.

then go back to \[y = mx + b\]

use that b to plug in and also the slope you just found for a general equation of the line.

Answer 7

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