PLZ HELPP! What is the equation of the line in slope-intercept form? the line perpendicular to

y = 1/3x + 5 through (2, 1)

A. y = 1/3x + 7

B. y = -3x + 7

C. y = 3x + 7

D. y = -1/3x + 7

Question

PLZ HELPP! What is the equation of the line in slope-intercept form? the line perpendicular to 

y = 1/3x + 5 through (2, 1)

A. y = 1/3x + 7

B. y = -3x + 7	

C. y = 3x + 7	

D. y = -1/3x + 7

jim_thompson5910 · Answer

the slope of y = 1/3x + 5 is what?

anonymous · Answer

-3?

jim_thompson5910 · Answer

no it's just the number in front of the x

anonymous · Answer

just 3

jim_thompson5910 · Answer

more like 1/3

anonymous · Answer

im sorry im just so lost havent done this in yearss

jim_thompson5910 · Answer

the slope of y = 1/3x + 5 is 1/3

jim_thompson5910 · Answer

now you flip the fraction to get 3/1

then you flip the sign to get -3/1 = -3

anonymous · Answer

so it would be A then correct?

jim_thompson5910 · Answer

so the original slope is 1/3

the perpendicular slope is -3

jim_thompson5910 · Answer

there's only one answer choice that has a slope of -3

anonymous · Answer

oo gotcha thank you

jim_thompson5910 · Answer

you're welcome