Question 4.

Which is the equation of the given line in slope-intercept form?
(Points : 1)

Question

Question 4. 

Which is the equation of the given line in slope-intercept form? 
(Points : 1)

anonymous · Answer

anonymous · Answer

a. y= -1/4x + 1

b. y= -4x + 1 

c. y= 4x - 1

d. y= 4x + 1

danjs · Answer

so can you calculate the slope of that line using the 2 points they have labeled for you?

danjs · Answer

given the two points on the graph (x1,y1) and (x2,y2) 
Calculate the slope by finding
$$slope = m = \frac{ y2 - y1 }{ x2 - x1 }$$

anonymous · Answer

-1 - 1/ 5 - (-3)

anonymous · Answer

@DanJS

danjs · Answer

k

danjs · Answer

a point is in the form (x , y)

put the difference in y values on the top not bottom

danjs · Answer

(-3 - 5)  / (1 -(-1) = -8 / 2  = -4

danjs · Answer

only one answer has a slope of -4

anonymous · Answer

so which one is it? @DanJS

danjs · Answer

the answers are in the form 
y = mx + b,   where m=the slope, 
we figured m = -4
only one answer has that.