Complete the equation of the linear function.

y =?? x +??

Question

Complete the equation of the linear function.
 
y =?? x +??

anonymous · Answer

http://static.k12.com/calms_media/media/1524000_1524500/1524412/1/4ca0974cc0b94f0ca087c628d4c99d7f088b0730/MS_IMC-140901-106145.jpg

igreen · Answer

Find the slope and y-intercept

y-intercept is where the line crosses on the y-axis..where is that?

anonymous · Answer

no 1

igreen · Answer

Correct.

y = mx + b

Where 'b' is the y-intercept.

So far we have:

y = ?? x + 1

igreen · Answer

For the slope take any two points on the line and plug them into the slope formula.

Let's take (-1, 3) and (1, -1).

$m = \dfrac{y_2-y_1}{x_2-x_1}$

$m = \dfrac{-1-3}{1+1}$

Simplify, tell me what you get.

anonymous · Answer

-4/2

igreen · Answer

Yes, now divide that

anonymous · Answer

-2

igreen · Answer

Correct, so the slope is -2.

SO we have:

y = -2x + 1

igreen · Answer

*So

anonymous · Answer

thank you... sorry my internet is slow today XP