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Graphs of Quadratic Functions
Solving Quadratics
The Discriminant
100
The graph of y=-x^2+3x+2 opens _________
what is down
100
Solve 3x^2=48
what is x=4, -4
100
The discriminant of a quadratic equation tells you_________
what is the number of solutions
200
Use your graphing calculator to find the roots of y=x^2+9x+18
what is x=-3, -6
200
Solve x^2-50=0
what is x=5sqrt(2), -5sqrt(2)
200
if the discriminant is negative there are ______________
what is no real solutions (imaginary)
300
Use the table feature on your graphing calculator to find the solutions to 4 = -2(x-3)^2 +4.
what is x = 3
300
Solve 4x^2-20=124
what is x=-6, 6
300
Find the discriminant of y=x^2+2x+1
what is the discriminant = 0
400
If the discriminant is negative, the function _________ cross the x-axis
What is does not
400
Solve x^2+8x+14=0 and classify its solutions
what is x=-4-sqrt(2), sqrt(2)-4 and what is one negative and one positive solution, both real and irrational solutions.
400
Find the number of solutions to x^2+4x-5
what is there are two solutions.