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Please do question b 

explain the steps plz thanks

YEEEEEET  Nov 6, 2018
edited by YEEEEEET  Nov 6, 2018
 #1
avatar+13718 
+2

A   Circle with center h,k   and radius 5

       is   (x-3)^2 + (y-5)^2 = 5^2

 

B       (7-3)^2 + (8-5)^2 = 5^2 ?

            4^2    +    (-3)^2

              16    +       9    = 25    check!

ElectricPavlov  Nov 6, 2018
 #2
avatar+13718 
+2

C  Where it crosses the y-axis, x = 0   so

      (0-3)^2  + (y-5)^2 = 25

                      (y-5)^2  = 16     sqrt both sides

                         y-5  = +-4

                         y=9 and 1

ElectricPavlov  Nov 6, 2018

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