1. -1
2. 1
3. 5
4. -1
5.-1
6. -3
By identifying the radius and the center, we concluded that the equation is something like:

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How to write the equation of the circle?</h3>
For a circle centered on the point (a, b) with a radius R, the equation is:

So first we need to identify the center, we can see that it is: (2, 1.5)
And the radius is the distance between the center and the edge.
R = 1.8 (measured with a ruler, respecting the notation of the graph).
Then the equation of the circle is something like:

If you want to learn more about circles:
brainly.com/question/1559324
#SPJ1
2^4-1 so 2•2•2•2=16 and 16-1 is 15
Answer:
Rational
Step-by-step explanation:
This number is rational because it can be expressed as a ratio between two numbers.
Step-by-step explanation:
—x intercept, y = 0
y = 1/2 x + 2
0 = 1/2 x + 2
-2 = 1/2 x
-2.2 = x
-4 = x
X intercept = (-4 , 0)
—y intercept, x = 0
y = 1/2 x + 2
y = 1/2 . 0 + 2
y = 0 + 2
y = 2
Y intercept = (0 , 2)
Graph in the picture :)