1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andreev551 [17]
2 years ago
7

The center of a circle lies on the line y = 4x + 1 and is tangent to the x-axis at (−3,0) . What is the equation of the circle i

n standard form? Enter your answer by filling in the boxes. (x__)^2+(y__)^2=___

Mathematics
1 answer:
Hunter-Best [27]2 years ago
5 0

Answer:

(x+3)^2+(y+11)^2=121

Step-by-step explanation:

Consider a sketch of the problem as shown in the picture, where:

  • Blue line is given by y = 4x + 1.
  • Point B is the center of the circle.
  • Point A is (-3, 0).

Since the center of the circle lies on the line y = 4x +1 and is tangent to the x-axis at point A, then its radius BA is perpendicular to the x-axis. To find the coordinates of point B, we must replace x = -3 into the blue line equation: y = 4x(-3) + 1 = -11.

So, we know that the center of the circle is at B=(-3, -11). And furthermore, the radius BA is of length r=11.

Since the <em>general equation of the circle</em> of radius lenght r centered at (h, k) is given by

(x-h)^2+(y-k)^2=r^2

then with h = -3, k = -11 and r= 11, the equation of our circle is

(x+3)^2+(y+11)^2=121

You might be interested in
Mia and Kai want to rent a canoe at the boathouse on the river. It costs $6.95 to rent a canoe for 1 hour .
Mrac [35]
How many hours we they going to rent the canoe=x 6.95x
6 0
2 years ago
A company's board of directors wants to form a committee of 2 of its members. There are 5 members to choose from. How many diffe
Butoxors [25]

Answer:

10 committees

Step-by-step explanation:

Let's say there names are Bob, Doris, Brenda, Alex, and Emma.

Bob and Doris

Bob and Brenda

Bob and Alex

Bob and Emma

Doris and Brenda

Doris and Alex

Doris and Emma

Brenda and Alex

Brenda and Emma

Alex and Emma

these are all different groups starting with only 5 people leading to 10 possible variations of the committee members

Hope that helps! :)

3 0
3 years ago
For his long distance phone service, Manuel pays a $2 monthly fee plus 12 cents per minute. Last month, Manuel's long distance b
irga5000 [103]

Answer:

126 minutes

Step-by-step explanation:

8 0
3 years ago
Adele Garcia obtained a loan of 8,000$ at 12% interest for 24 months . The monthly payment is 367.80. after 15 payments the bala
Rama09 [41]

Answer:

6

Step-by-step explanation:


8 0
3 years ago
What is the equation that models the sequence 6,12,24,48
labwork [276]
The equation that models the sequence is: 6+6 each time.
8 0
3 years ago
Read 2 more answers
Other questions:
  • How do I solve for X? 37/24=7/8-5x/6
    10·1 answer
  • Can someone please explain how i can solve this ...thank you very much
    8·2 answers
  • Find measure of angle if it is 20 more than 4 times its supplement
    11·1 answer
  • How do you simplify a fraction
    8·2 answers
  • What is the GCF for 24 and 60
    9·1 answer
  • Determine the equation of the inverse of y=2^3x-1
    7·2 answers
  • Write the slope-intercept form of the equation
    8·1 answer
  • WILL MARK BRAINLIEST!!! Plz help me with my math!
    6·1 answer
  • Help me plsssssssssssssss
    11·1 answer
  • 3 x 10 + 2 x 1 + 6 x 1|100 + 4 x 1|1,000 is the expanded form of which decimal?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!