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3 years ago

Please help me understand this math.

Mathematics

1 answer:

Lina20 [59]3 years ago

7 0

Answer:

y ≤ 3x − 1

Step-by-step explanation:

The line has a y-intercept of -1 and a slope of 3.

The shaded area is below the line, so we use < or ≤.

The line is solid, not dashed, so we use ≤.

y ≤ 3x − 1

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Complete the square to rewrite y-x^2-6x+14 in vertex form. then state whether the vertex is a maximum or minimum and give its co

ycow [4]

Answer:

$y= x^2 -6x +(\frac{6}{2})^2 +14 -(\frac{6}{2})^2$

And solving we have:

$y= x^2 -6x +9 + 14 -9$

$y= (x-3)^2 +5$

And we can write the expression like this:

$y-5 = (x-3)^2$

The vertex for this case would be:

$V= (3,5)$

And the minimum for the function would be 3 and there is no maximum value for the function

Step-by-step explanation:

For this case we have the following equation given:

$y= x^2 -6x +14$

We can complete the square like this:

$y= x^2 -6x +(\frac{6}{2})^2 +14 -(\frac{6}{2})^2$

And solving we have:

$y= x^2 -6x +9 + 14 -9$

$y= (x-3)^2 +5$

And we can write the expression like this:

$y-5 = (x-3)^2$

The vertex for this case would be:

$V= (3,5)$

And the minimum for the function would be 3 and there is no maximum value for the function

4 0

3 years ago

Solve: 12 dogs decreased by 25% step by step pls.

Annette [7]

Decreased by 25%
find 25% of 12 and decrease 12 by it

percent means parts out of 100
25%=25/100=1/4
'of' means multiply
25% of 12=1/4 times 12=3

decrease 12 by 3
12-3=9

answer is 9

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Drupady [299]

Answer:

Step-by-step explanation:

Graph all points. They do not make a line.

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Novay_Z [31]

Answer:

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Step-by-step explanation:

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Let the cost of students' edition books be s

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The total number of books is 2 + x.

So the average cost per book is (300 + 50x)/(2 + x)

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2 years ago

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MAVERICK [17]

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