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3 years ago

A line passes through the points A(-1,7) and B(1,3). Write an equation of this line.

Mathematics

2 answers:

Anna35 [415]3 years ago

5 0

Answer:

y=2x+1

Step-by-step explanation:

Solve:

$m=\frac{3-7}{1-(-1)} =\frac{4}{2} =2\\m=2$

Put in slope-intercept form:

$3=2(1)+b\\3=2+b$

-2 -2

$b=1$

End equation:

$y=2x+1$

Hope this helps! :)

Aleks04 [339]3 years ago

4 0

…………,,…,.,………..,.,.,…….

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Question Help Factor the expression. 7y squared+10y+ 3

kirill [66]

7y^2 + 10y + 3

7y^2 + 7y + 3y + 3

(7y^2+7y) + (3y+3)

7y(y+1) + 3(y+1)

(7y+3)(y+1)

So the final answer is (7y+3)(y+1)

4 0

3 years ago

◕ A dealer sold a photocopy machine at Rs 4200 with 13% VAT to a retailer. The retailer added transportation cost of Rs 250 , pr

satela [25.4K]

Given :-

A dealer sold a photocopy machine at Rs 4200 with 13% VAT to a retailer.
The retailer added transportation cost of Rs 250 , profit Rs 300 and local tax Rs 150 and sold to consumer .
Customer has to pay 13% VAT .

To Find :-

Amount to be paid by the customer .

Solution :-

Here , according to the question ,

$\sf\dashrightarrow Cost\ of \ machine \ = \ Rs 4200$

$\sf\dashrightarrow VAT = 13\%$

Therefore cost after adding VAT ,

$\sf\dashrightarrow Cost = Cost_{initial}+13\% of Cost_{initial}\\$

$\sf\dashrightarrow Cost = Rs4200 + Rs 4200 \times \dfrac{13}{100}\\$

$\sf\dashrightarrow Cost = Rs4200 + Rs546\\$

$\sf\dashrightarrow \bf{ Cost = Rs 4746}$

Again the values added by the retailer before selling to customer ,

Transport = Rs 250
Profit = Rs 300
Tax = Rs 150

Therefore total cost after adding these ,

$\sf\dashrightarrow Cost = Rs( 4746+ 250+ 300 + 150 )\\$

$\sf\dashrightarrow\bf { Cost = Rs 5446}$

Again Selling price after addition of 13% VAT ,

$\sf\dashrightarrow SP = Rs 5446 + 13\% \ of \ Rs 5446\\$

$\sf\dashrightarrow SP = Rs 5446 + \dfrac{13}{100}\times 5446 \\$

$\sf\dashrightarrow SP = Rs (5446 + 707.98) = Rs ( 5446 + 708)\\$

$\sf\dashrightarrow \underline{\underline{\bf SP_{to\ the \ customer} = Rs 6154}}$

Hence the amount to be paid by the customer is Rs 6154 .

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2 years ago

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natulia [17]

Answer:

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Step-by-step explanation:

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3 years ago

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Alex

Answer:

12(6+9m)

therefore we multiple the 12 by the numbers in the blaket

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that's the correct answer

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3 years ago

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Evgesh-ka [11]

Answer:

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Step-by-step explanation:

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