All categories

2 years ago

#15. Write the equation of each circle.

Mathematics

1 answer:

frosja888 [35]2 years ago

5 0

Answer:

Step-by-step explanation:

The center is at (1,-2) from the graph.

The radius is 2 [3 - 1 on the horizontal]

The equation of the circle is

(x - 1)^2 + (y + 2)^2 = 2^2

(x - 1)^2 + (y + 2)^2 = 4

You might be interested in

Write the equation of a line that is parallel to 3x+2y=10 and passes through the point (4,-5). Answer in slope-intercept form.

SCORPION-xisa [38]

The equation of line is:

$y = \frac{-3}{2}x+1$

Further explanation:

The standard form of equation in point-slope form is:

$y = mx+b$

Given equation is:

3x+2y=10

We have to convert it into point slope form, for which we have to isolate y on one side of equation

$3x+2y = 10\\2y = -3x +10\\y = \frac{-3}{2}x + \frac{10}{2}\\y = \frac{-3}{2}x + 5$

Comparing with standard form:

m = -3/2

As the new line is parallel to given line, their slopes will be equal

So,

$y = \frac{-3}{2}x+b$

To find the value of b, putting the given point (4,-5) in equation

$-5 = \frac{-3}{2}(4)+b\\-5 = -6+b\\b = -5+6 \\b = 1\\So\ the\ equation\ is:\\y = \frac{-3}{2}x+1$

Keywords: Point-slope form, equation of line

Learn more about point-slope form of equation at:

#LearnwithBrainly

4 0

3 years ago

If mAGF = mBGC = mDGC = mEGF = 67°, what is mAGB?

lesantik [10]

Ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

4 0

3 years ago

Find the measure of the missing angles.

Rainbow [258]

Step-by-step explanation:

c=144°(vertically opposite angle)

b+c=180°(straight angle)

b+144=180

b=180-144

b=36°

7 0

2 years ago

Find the distance between the lines: x = -7 and x=23

Crank

Answer: 30 (units)

Step-by-step explanation: |-7|+|23|=30

8 0

2 years ago

Margaret is reading a book. The number of pages she has left to read is 276−35d276−35d , where d represents the number of days s

mamaluj [8]

276 - 35d

276 = total pages
35 = pages read per day
35D = number of pages she has read during D days

8 0

3 years ago

Read 2 more answers