A line passes through the point (7,-4_ and has a slope of 2 . Write an equation for this line.

Question

A line passes through the point (7,-4_   and has a slope of 2 . Write an equation for this line.

anonymous · Answer

Same logic i used on the other question.

y = mx + b

the slope (m) is given and its = 2
you know the point (7,-4) so now all you must do is to find b

good luck

anonymous · Answer

uh

anonymous · Answer

well.. To find b you need to add all you have to the equation:

y = mx+b
-4 = 2*7  + b

b = -4 - 14

anonymous · Answer

lol 
$$y-y_1=m(x-x_1)$$
$$y+4=2(x-7)$$ solve for $y$ in two steps 
$$y+4=2x-14$$
$$y=2x-18$$

anonymous · Answer

@satellite73  didn't knew that technique. Awesome stuff!!!