Question 633738
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
Find the points of intersection of the graphs:
y=3x-3 
x^2+y^2=25
x^2 + (3x-3)^2 = 25
 10x^2 - 18x -16 = 0
  5x^2 - 9x -8 = 0
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x = (9 +- sqrt( 241))/(10) }}}
  x = 2.45  or x = -.65
 points of intersection of the graphs: (2.45, 4.35)  and (-.65, -4.96)
{{{drawing(300,300,   -10,10,-10,10,  
 grid(1),
circle(0, 0,5.0),
circle(2.45, 4.35,0.4),
circle(-.65, -4.96,0.4),
graph( 300, 300, -10,10,-10,10,0,3x-3))}}}