Given the point (5, 6) and the slope of 5, find y when x = 21.

Question

anonymous · Answer

Apply the formula 
$$y -y_{1} = m(x-x_{1})$$

where:
$$m$$is the slope of the curve

$$(x_{1}, y_{1})$$ is your given point.
Substitute those numbers in and make y the subject.

anonymous · Answer

It would be 6-y=21(x-5)

anonymous · Answer

@Azteck

anonymous · Answer

LHS is not quite correct. Please refer back to the formula I gave you compare the LHS of that formula to what you did on your LHS.

anonymous · Answer

Remember:
$$y_{1}$$is the coordinate of your given point. Not y.

anonymous · Answer

y-6=21(5-x)?? I don't understand:(

anonymous · Answer

LHS means Left Hand side. sorry if I confused you with that. Your RHS (Right hand side) was correct before. Why did you change it?

anonymous · Answer

so I had to change just the y? like this? y-6=21(x-5)