A circle has a radius of \sqrt{45} 45 square root of, 45, end square root units and is centered at (-2.4,-4.8)(−2.4,−4.8)(, minus, 2, point, 4, comma, minus, 4, point, 8, ). Write the equation of this circle.

Step-by-step explanation:

The equation of a circle centre(h,k) of radius r is given by:

r²=(x-h)²+(y-k)²

If radius,

Centre, (h,k)=(-2.4,-4.8)

Substitution into the equation of the circle formula

r²=(x-h)²+(y-k)²

The equation of the circle is therefore given as:

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step-by-step

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1