what would x^2+y^2-4x+2y=0 (Equation for a cirlce) be in
r^2=(x-h)^2(y-k)^2 form?


I will start you off...

x^2-4x+y^2 +2y =0
x^2-4x+ 4 + y^2 +2y+ 4 =+ 4+ 4
(x^2-4x+ 4) + (y^2 +2y+ 4) =8

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra review!

    it says write the equation of the vertical line that passes through the point (7,-3). what do i need to start it off? find the equation for the line with undefined slope and passing through the point (-1,-2). what do i need to

  2. Math

    Find the product. Your answer should be in simplest form. 1. one-third• 7 (1 point) one over twenty-one two and one-seventh two and one-thirdFind the product. Your answer should be in simplest form. 2. –seven-ninths• start

  3. Math(check)

    1)Find the range of the relation [(-1,4)},(2,5),(3,5)}.Then determine whether the relation is a funtion. 4,5,5 is the range 4,5 is a function 2)Find f(-1),if f(x)= x^2-6x/x+2 (-1)^2-6(-1)/-1+2 1+6/-1+2 7/1 =7 3)Find f(a),if f(t)=

  4. algebra 2

    a quadratic equation can be written in vertex form or in standard form. sometimes one form is more beneficial than the other. identify which form would be more helpful if you needed to do each task listed below and explain why. a.

  1. science

    Use the chemical equation to complete the activity. 2Cu+S→Cu2S Copper (Cu) reacts with sulfur (S) to form copper sulfide as shown in the chemical equation. A scientist adds 4 grams of Cu to 2 grams of S to start the reaction. At

  2. algebra

    What is the simplified form of 3 Start Root 5 c End Root times Start Root 15 c cubed End root? A. 15 c squared Start Root 3 End Root B. 6 c squared Start Root 5 End Root C. 5 c squared Start Root 3 End Root D. 12 c superscript 4

  3. Calculus

    Two cars start moving from the same point. One travels south at 60 mph and the other travels west at 25 mph. At what rate is the distance between the cars increasing 2 hours later? Let x = the distance covered by the south

  4. MATH

    45. Express each equation in the specified form. a. y = (x – 3)² - 25 in standard form B. y = 2(x – 7)(x + 3) in standard form. C. y = - 2x² + 28x – 26 in factored form D. y = -9x² + 72x + 81 in vertex form

  1. algebra

    Recall that the standard form of a linear equation is Ax+By=C. Rewrite this equation in slope-intercept form

  2. mathematics

    The equation of a line given two points needs to be found. Samuel claims that slope-intercept form will generate the equation and Helena claims that point-slope form will find the equation. Who is correct? Explain your reason by

  3. find the polynomial

    degree 4 zeros i & (1+i) constant term 12 How do I start this problem. Thanks A degree four polynomial will have the form (x^4 +... x + c), where c is a constant. You will need to generate an equation that has the above form,

  4. Algebra

    5) What is the equation in standard form of an ellipse centered at the origin and vertex (0, 4) and focus (0, 1)? I don’t know how to start the problem off, if you can help with that that would be really helpful

You can view more similar questions or ask a new question.