The table below shows a social media manager's prices for social media posts. The "Cost of Each Post" reflects what the manager charges per post. Additionally, the manager charges a "Base Price" that reflects the cost of the service, regardless of the number of posts.
Types of Posts
Cost of Each Post Base Price
Posts with Words Only 85
35
Posts with Pictures Only S10
$25
Posts with Words and Pictures $10
535
Samuel ordered 2 posts with words only and 2 posts with pictures only. After placing his order, Samuel realized he could have saved money if he, instead, ordered 2 posts with
words and pictures. Let y represent Samuel's savings, in dollars, and ot x represent the number of posts.
Which equation could be used to determine the amount of money Samuel could have saved if he ordered 2 posts with words and pictures, instead of his original order?

slope = (y2-y1)/((x2-x1)

    = (-4-2)/(1-(-1))

    = (-6/2)

m = -3

point slope form

y-y1 = m(x-x1)

y-2 = -3(x-(-1))

y-2 =-3(x+1)

y-2 = -3x-3

y= -3x-3+2

y=-3x-1

Choice B

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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