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Published byMarilynn Stokes Modified over 5 years ago

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Do you remember… How do you simplify radicals? What happens when there is a negative under the square root? What is i? What is i 2 ? How do you add or subtract complex numbers? How do you multiply complex numbers? How do you solve for x if you have x 2 on one side of the equal sign? What is a conjugate? How do you divide complex numbers?

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Solve for x x 2 =16 x 2 =-9 x 2 =-24 2x 2 =30 x 2 +5=-20 3x 2 +1=4 2x 2 +3x+7=0

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Quadratic Functions Standard Form: ax 2 +bx+c=0 Determine a, b, and c 2x 2 +3x+7=0 x 2 -4x+3=0 -3x 2 -2x-1=0 x 2 +4=0 5x 2 -10x=-24 7m 2 -3m+2=7 a=2 b=3 c=7 a=1 b=-4 c=3 a=-3 b=-2 c=-1 a=1 b=0 c=4 5x 2 -10x+24=0 a=5 b=-10 c=24 7m 2 -3x-5=0 a=7 b=-3 c=-5

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Solutions/zeroes/x-intercepts The solution (or zero) of a quadratic function is where the graph crosses the x-axis (where y=0)

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Calculator Notes

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Quadratic Sorting Use what we’ve learned Work together (2-3 people per group) Sort the quadratics into Categories Put everything on a page in your binder Categories, problems, reasoning

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Ticket Out Use your calculator to find the solution(s) to

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