Which of the following is the equation of the parabola described with vertex at (5,−3), axis parallel to the y-axis and passing through the point (1,1)?(a) (x−5)2=4(y+3)(b) (x+5)2=4(y−3)(c) (y+3)2=4(x−5)(d) (y−3)2=4(x+5)
Q. Which of the following is the equation of the parabola described with vertex at (5,−3), axis parallel to the y-axis and passing through the point (1,1)?(a) (x−5)2=4(y+3)(b) (x+5)2=4(y−3)(c) (y+3)2=4(x−5)(d) (y−3)2=4(x+5)
Identify standard form: Step 1: Identify the standard form of the equation for a parabola with a vertical axis. The standard form is (x−h)2=4p(y−k), where (h,k) is the vertex.
Plug in vertex: Step 2: Plug in the vertex (5,−3) into the equation. This gives us (x−5)2=4p(y+3).
Find value of p: Step 3: Use the point (1,1) to find the value of p. Substitute x=1 and y=1 into the equation: (1−5)2=4p(1+3).
Simplify and solve: Step 4: Simplify and solve for p. (1−5)2=16, and 1+3=4, so 16=4p×4.
Solve for p: Step 5: Solve 16=16p. Divide both sides by 16, p=1.
Substitute p back: Step 6: Substitute p back into the equation. We get (x−5)2=4(y+3).
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