What is equation of the blue line

-1

Step-by-step explanation:

To find the slope, you find the change in y over the change in x. In other words, you find the rise over the run.

If we just look at any square the line runs through, we see that the line goes down one, and goes right one. The "rise" is -1 (this is negative, because the line goes down towards the negative y direction), and the "run" is 1 (this is positive, since the line goes towards the positive x direction). This means that the slope is -1/1, or just -1

Slopes have equation y=mx+b. We found that the slope is -1, so we have y=-1x+b so plugging in any point, say (0,-1), we get -1=0+b, so b=-1. This gives the equation y=-1x+b, or just y=-x+b

Step 1) Pick two points on the line

Point 1: (0,-1)

Point 2: (-2,1)

Step 2) Use those points to find the slope

m = (1 - -1) / (-2 - 0)

m = (1 + 1) / -2)

m = 2 / -2

m = -1

Step 3) Plug in the slope and one point on the line into the slope-intercept form equation and solve for b, the y-intercept

y = -1x + b

-1 = -1(0) + b

b = -1

Step 4) Plug in the slope and the y-intercept into the slope-intercept form equation to get the final equation of the line

y = -1x - 1

Hope this helps! :)

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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answear:

a

step-by-step explanation: a