Posted by emer on Saturday, September 9, 2006 at 4:14pm.
this maths problem is wrecking my head....
1.find the points of interesction of the line L and the circle k in the following
L:x-2y=0
K:X Squared + y squared=25
I would solve both equations for y, and then you'll have a system with two equations and two variables:
y = x/2
y = (plusorminus) sqrt(25 - x^2)
Solve the system and you'll have your points of intersection.
Use the substitution method to solve these equations. This is not a linear system because of the exponents in K.
We hve
L: x-2y=0
K: x^2+y^2=25
L is a line with slope 1/2 that goes through the origin.
K is a circle of radius 5 centered at the origin.
From L we have x=2y. Using this for x in K we have
(2y)^2+y^2=25 so 4y^2+y^2=5y^2=25 or,
y=+/-sqrt(5)
Use those values of y in either L or K to solve for the corresponding x values.
Be sure to check the answers by substituting in L and K.
I need help with this problem:
3y=15x-12
Please give me the answer ASAP. ;)
I need help with this problem:
3y=15x-12
Please give me the answer ASAP. ;)
I need help with this problem:
3y=15x-12
Please give me the answer ASAP. ;)
I need help with this problem:
3y=15x-12
Please give me the answer ASAP. ;)
i don't understand the equation?
No one has answered this question yet.
Answer this Question
Related Questions
Geometry - Within an orthonormal system consider points A(1,4) B(5,1) C(4,8) (a)...
maths-urgently needed - find the equation of circle if the line 2x - y +1 = 0 ...
Maths - In an orthonormal system, you're given the following: Point P(1,2) ...
homework check - which if the following statements is false? a. The points of a ...
Geometry - Help please I'm stuck in this 3 problems. 1.Find the center and ...
analytic geometry/graphing problem - The vertices of a triangle are the points ...
Geometry - Triangle RSU has two of its points(R and S) on the sides of a circle...
analytical geometry - the points M(6,-8) and E(8,6) are on a circle with radius ...
maths - 1. Prove using mathematical induction that 1+2+3+...+n=[ n(n+1)]/2 2. ...
maths - 1. Prove using mathematical induction that 1+2+3+...+n=[ n(n+1)]/2 2. ...
For Further Reading
