3 years ago

Help I’ll give extra points

Mathematics

1 answer:

AnnZ [28]3 years ago

4 0

Answer:

Step-by-step explanation:

Hope this helps

180-90-39

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Find the equation of the line passing through the points (-2/3,1) and (-2,1/2). Write the equation in standard form.

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Standard form is y = mx + b.
To find the slope, m, we must find the 'rise over run,' or the difference in y divided by the difference in x. We do this by:
$\frac{y1 - y2}{x1 - x2} = \frac{ (- \frac{2}{3} ) - ( -2 )}{(1) - ( \frac{1}{2} ) } = \frac{ \frac{4}{3} }{ \frac{1}{2} } \\ = \frac{4}{3} \times \frac{2}{1} = \frac{8}{3}$
Therefore, the slope is 8/3.

To find b, we must plug in the slope and one point:
$(1) = ( \frac{8}{3} )( - \frac{2}{3} ) + b \\ 1 = - \frac{16}{9} + b \\ \frac{25}{9} = b$
Therefore, b is 25/9, and the total equation is
$y = \frac{8}{3} x + \frac{25}{9}$

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Help me pls I’ll mark you as brain

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What property allows 3=x to be written as x=3

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The table shows revenue R (in millions of dollars) of a company when it spends A (in millions of dollars) in advertising.

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Advertising is x and revenue is y

(0,2)(2,6)
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y = mx + b
slope(m) = 2
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now we sub and find b, the y int
2 = 2(0) + b
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so ur equation is : y = 2x + 2

spends 10 mill on advertising.....so x = 10
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