FAN AND MEDAL:

Question

FAN AND MEDAL:

anonymous · Answer

Choose the equation that represents the graph provided:

 y = -2x - 4

 y = 2x + 4

 y = -2x + 4

 y = 2x - 4

anonymous · Answer

attachment

anonymous · Answer

@ehuman @inkyvoyd @esshotwired @nikato @RadEn @ranga @shamil98 @SolomonZelman @jigglypuff314 @iPwnBunnies @hartnn @WHAT?! @campbell_st @hba @Jagking @mathmale @mathmate  CAN ANY OF Y'ALL HELP ME PLEASE?

jigglypuff314 · Answer

slope is rise/run
y-intercept is where the line crosses the y-axis

slope-intercept form: y = mx + b
when m = slope and b = y-intercept

kirbykirby · Answer

One thing that will help is to look for the y-intercept in the graph (where the line crosses the y-axis). And then, you can easily identify the sign of the slope
If the line is going this way: / it is positive
If the line is going this way : \ it is negative

anonymous · Answer

How can you distinguish where, if at all, a negative should be present in the equation?

jigglypuff314 · Answer

kirby described it well
slope  / is positive
slope \ is negative

anonymous · Answer

What I'm saying is, I know that it is a negative slope. And when using y=mx+b, m is slope. So, the answer is automatically either A or C. But, with A it is -4 and with C it is +4. How do I know which one to choose?

jigglypuff314 · Answer

where does the line cross the y-axis?
y = ?

anonymous · Answer

It crosses the y-axis at -4. So b=-4 which means that the answer is A, correct?

kirbykirby · Answer

yup :)

anonymous · Answer

Awesome! Okay, thanks guys! (: