A) y= -2, 3, 7
B) y= 8, 0, -6
C) y= -8, 1, 7
d) y= 1, -2, -6
Answer:
OK, lets start by drawing a basic graph (the first one) so we can visualize.
We already know that the y coordinate of the circle's center is 
.
We know that the circle is tangent to the 
axis at 
That means the x coordinate of the center has to be 
, as the tangent is a point on the edge of the circle that touches a line at exactly one point.
The radius is the distance from the center of the circle to its edge. We know the center's location now, it is 
and a point on the edge of the circle (the tangent point) which is . so the distance between the points is 4 which is the radius (you can use the distance formula, but it's quite oblivious.)
We can imagine the circle should look like this (the second one):
Now we can piece together an equation
The equation of a circle is 
where 
is the center and 
is the radius. When we put the numbers in: we get 
which can be simplified into which is the answer.
Step-by-step explanation:
Answer:
we really can't tell because we are not able to use a protactor and a ruler
A.step 1 because it should be x^2 not 2x
Answer:
C(d) = d(2.25) + m(0.3)
Step-by-step explanation:
A taxi company charges $2.25 per ride plus $0.30 per mile.
Let d represent number of rides..
Let m represent number of Miles...
Then let C represent the total cost for each ride at a specific number of Miles.
The linear model representing the cost as a function of d the total ride
C(d) = d(2.25) + m(0.3)
The values stand independently because the customer can choose a different right and a different mile.
