-2.4n-3 and -7.8n +2

Mathematics

1 answer:

Over [174]4 years ago

6 0

Answer:

the correct answer is 21n +2

Step-by-step explanation:

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Find the slope of the line graphed below.

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to get the equation of any straight line, we simply need two points off of it, let's use the ones provided in the picture below.

$(\stackrel{x_1}{1}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{-3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-3}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{1}}} \implies \cfrac{-7}{2}$

$\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{4}=\stackrel{m}{-\cfrac{7}{2}}(x-\stackrel{x_1}{1}) \\\\\\ y-4=-\cfrac{7}{2}x+\cfrac{7}{2}\implies y=-\cfrac{7}{2}x+\cfrac{7}{2}+4\implies y=-\cfrac{7}{2}x+\cfrac{15}{2}$

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2 years ago

What are irrational numbers *PLZ GIVE AN EXAMPLE*

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Irrational numbers have a long amount of numbers after the decimal place that never really end it would be like pi or the square root of two. Also irrational numbers can't be represented as a fraction

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4 years ago

Javier and his study group designed a word problem, equation, table, and graph that were all supposed to represent the same info

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Graph is your answer look below for proof

have a good day!