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3 years ago

I dont understand this help me :( What is the equation of a line with a slope of 3 and a point (3, 1) on the line?

1 answer:

7 0

$\bf (\stackrel{x_1}{3}~,~\stackrel{y_1}{1})~\hspace{10em} slope = m\implies 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-1=3(x-3) \\\\\\ y-1=3x-9\implies y=3x-8$

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The cost of producing x hundred items is given by the equation C(x) = x2 – 3x + 7 and the revenue generated from sales of x hund

Goryan [66]

Answer:

At x = 2 and 10.

Step-by-step explanation:

Given : The cost of producing x hundred items is given by the equation $C(x) = x^2-3x + 7$

The revenue generated from sales of x hundred units is given by the equation $R(x) = -x^2 + 21x-33$

To Find :What values of x will the company break even?

Solution:

Cost function : $C(x) = x^2-3x + 7$

Revenue function : $R(x) = -x^2 + 21x-33$

Now to find the company break even :

$-x^2 + 21x-33= x^2-3x + 7$

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$12x= x^2+20$

$x^2-12x+20=0$

$x^2-10x-2x+20=0$

$x(x-10)-2(x-10)=0$

$(x-2)(x-10)=0$

So, x = 2,10

Hence the company break even at x = 2 and 10.

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4 years ago

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pishuonlain [190]

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

I dont understand this help me :( What is the equation of a line with a slope of ​3​ and a point (3, 1) on the line?

I dont understand this help me :( What is the equation of a line with a slope of 3 and a point (3, 1) on the line?