Answer:
Step-by-step explanation:
x+y=17 is NOT the equation for any circle. You have omitted the exponents. The equation for the circle should be
x^2 + y^2 = 17.
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Plug the coordinates of D into the equation.
(-4)² + (-1)² = 17, so D is on the circle.
Plug the coordinates of E into the equation.
1² + 4² = 17, so E is on the circle.
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Slope of DE = (-1 - 4)/(-4 - 1) = 1
Slope of perpendicular to DE is -1.
Midpoint of DE: ((-4+1)/2, (-1+4)/2) = (-1.5, 1.5)
Point-slope equation for perpendicular bisector:
y-1.5 = -(x+1.5)
y = -x
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Center of circle is (0,0)
0 = -0, so y=-x passes through the center.
Answer:9?
Step-by-step explanation: hair
Answer:
See explanation
Step-by-step explanation:
4. f(-2)=4
5. f(1)=1
6. x=-1. x=0. x=2
The vertex of the graph is at (-2, 3).
This means the equation is of the form 
.
Substituting in the coordinates of one of the other points on the graph that is not the vertex, such as (-1, -1),
So, the equation is 
