2 years ago

Fill in the table of values for the equation y = x + 2

Mathematics

1 answer:

sweet [91]2 years ago

3 0

Answer:

-3

Step-by-step explanation:

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What is the equation of the line that passes through the point (-3,4) and has a slope of 1?

yKpoI14uk [10]

Answer:

Y=x + 7

slope = 1, the coefficient of the x term, an implicit one

plug the point y=4, x=-3 into the equation, 4=-3+7 = 4, it passes through the point (-3,4)

Step-by-step explanation:

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Answer:

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2 years ago

The equation x^2 + y^2 + 21 = 40 + 18y. What is the radius of this cookie?

trapecia [35]

Answer:

The radius is 10

Step-by-step explanation:

Given

$x^2 + y^2 + 21 = 40 + 18y.$

Required

The radius

Rewrite as:

$x^2 + y^2 - 18y = 40-21$

Subtract 81 from both sides

$x^2 + y^2 - 18y +81= 40-21+81$

Expand

$x^2 + y^2 - 9y - 9y +81= 40-21+81$

Factorize

$x^2 + y( y- 9) - 9(y -9)= 40-21+81$

Factor out y - 9

$x^2 + (y- 9) (y -9)= 40-21+81$

Express as squares

$x^2 + (y- 9)^2= 100$

$x^2 + (y- 9)= 10^2$

The equation of a circle is:

$(x - a)^2 + (y- b)= r^2$

By comparison:

$r^2=10^2$

$r = 10$

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2 years ago

Fill in the table of values for the equation y = x + 2​

Fill in the table of values for the equation y = x + 2