Answer:
Step-by-step explanation:
Center of the circle is (0,0)
the point on the circle is (4,5)
Center radius form of the circle is
where (h,k) is the center and 'r' is the radius of the circle
WE know center is (0,0) . Lets find out the radius using the given point
Plug in the given point (4,5)
Equation becomes
General form of equation is
The speed is equal to
we know that
The speed is equal to divide the distance by the time
Let
x------> the distance in miles
y-----> the time in hours
s----> the speed in mph
so
In this problem we have
substitute
the answer is 6
if u look 2.5 gives u 3 so 5 would give u 6
-3
30/(-2)-(-3)(4)
BIDMAS
-15 - (-3)(4)
-15 - -12
-15+12
<u>Finding the proportionality constant</u> :
<u>Finding y when x = 17</u> :
The value of y is <u>8/17</u> when x = 17.