Answer: 3. a reflection over the x-axis, then a translation to the left.
N²+20n+100 = (n+10)(n+10)
Yes is it a perfect square trinomial
Answer:
Step-by-step explanation:
Given
x 2 4 6 8
y 1 2 3 4
Required
Determine the constant of proportionality (k)
The relationship between x and y is:
When y = 1, x = 2;
So, we have:
Make k the subject
Hence, the constant of proportionality is 1/2
Equation of a circle in standard form with center (h,k) and radius r is given by :
In the given question the center of circle is lying on y axis so h=0 .Radius r=3 Substituting these values in the equation of circle we have:
Expanding we have :
Subtracting 9 both sides
Comparing this with the equation of circle in general form
A=1,B=1,C=0
If D=-8 then E=7
So option C is the right answer
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