CPM Homework Help : INT2 Problem 10-54

CPM Homework Banner

Home > INT2 > Chapter 10 > Lesson 10.2.1 > Problem 10-54

10-54.

On graph paper, graph the circles given by the equations below. For each one, state the center and radius.

Hint (all):

Refer to the Math Notes box from Lesson 10.1.2 for help with the equation of a circle.

$x^2 + y^2 = 4.5^2$
Answer (a):
C: $(0, 0)$ ; $r = 4.5$

$x^2 + y^2 = 75$
Hint (b):
Notice the difference between part (b) and part (a).

$(x - 3)^2 + y^2 = 1$
Answer (c):
$(3, 0); r = 1$

$x^2 - 4x + y^2 - 2y = 14$
Hint (d):
Complete the square to solve for the center.

© 2022 CPM Educational Program. All rights reserved.