Q. Write the equation in standard form f(x)=ax2+bx+c. By using given points: (−10,10), (−7,4), (−11,20)
Plug and Simplify Quadratic Equation: Let's use the general form of a quadratic equationf(x)=ax2+bx+c and plug in the points to get three equations.
Eliminate Constant Term: Simplify each equation.
Align and Eliminate b Term: Subtract the second equation from the first to eliminate c.
Correct Mistake in Elimination: Subtract the second equation from the third to eliminate c.
Correct Mistake in Elimination: Subtract the second equation from the third to eliminate c. Multiply the third step's equation by 3 and the fourth step's equation by 4 to align the b terms.
Correct Mistake in Elimination: Subtract the second equation from the third to eliminate c. Multiply the third step's equation by 3 and the fourth step's equation by 4 to align the b terms. Subtract the fifth step's equation from the sixth step's equation to eliminate b.
Correct Mistake in Elimination: Subtract the second equation from the third to eliminate c. Multiply the third step's equation by 3 and the fourth step's equation by 4 to align the b terms. Subtract the fifth step's equation from the sixth step's equation to eliminate b. There's a mistake in the previous step, we didn't actually eliminate b. Let's correct that.
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