The graph of f passes through (-1,3) and is perpendicular to the line that has an x-intercept of 5 and a y-intercept of -40. The slope-intercept form of y=?

I attempted to answer this with 6/43x+135/43, but it was marked wrong.

Question

The graph of f passes through (-1,3) and is perpendicular to the line that has an x-intercept of 5 and a y-intercept of -40. The slope-intercept form of y=? 

I attempted to answer this with 6/43x+135/43, but it was marked wrong.

theprofessor35 · Answer

So, lets think....

Slope intercept form is y = mx + b

theprofessor35 · Answer

Find the slope using the equation

$$m = \frac{ y2 - y1 }{ x2 - x1 }$$

anonymous · Answer

It would be -43/6.

anonymous · Answer

And switching it to 6/43 would make the slope perpendicular.

theprofessor35 · Answer

Hmmm, good question....this is quite confusing

anonymous · Answer

Yep, it is. I don't know where I made a mistake.

priyar · Answer

first write the eq in intercept form

priyar · Answer

like: x/a +y/b = 1 where a=5 and b=-40. what do u get?

priyar · Answer

@staysmart ?

triciaal · Answer

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