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Aim: How do we graph, recognize, and
write the equation of a circle?
MB433/16/09Lomas
HW: Read 525-526
Do 528 #11-23odd
Do Now:Find the roots of y = x2 + 3x
- 7?
Equation of a Circle:(x - h)2 + (y - k)2 = r2
where the center is (h,k) and the radius is r
1) What is the center and the radius of this circle?(x - 7)2 + (y + 2)2 = 36
2) What is the equation of a circle with center (5,-4) and a radius 7?
Aim: How do we graph, recognize, and
write the equation of a circle?
MB433/16/09Lomas
HW: Read 525-526
Do 528 #11-23odd
Graph the circle:(x + 3)2 + y2 = 16
Center:
Radius:
Aim: How do we graph, recognize, and
write the equation of a circle?
MB433/16/09Lomas
HW: Read 525-526
Do 528 #11-23odd
What is the equation of this circle?Center:
Radius:
Aim: How do we graph, recognize, and
write the equation of a circle?
MB433/16/09Lomas
HW: Read 525-526
Do 528 #11-23odd
Write the equation of each circle:
Center (2, 0); r = 1
Center (0, 0); r = 2
Center (-4, 1); r = 5
Find the center, radius, and graph the circle(x + 2)2 + (y + 1)2 = 9
Aim: How do we graph, recognize, and
write the equation of a circle?
MB433/16/09Lomas
HW: Read 525-526
Do 528 #11-23odd
Aim: How do we graph, recognize, and
write the equation of a circle?
MB433/16/09Lomas
HW: Read 525-526
Do 528 #11-23odd
