What are the solutions for the quadratic equation
x^2 - 8x = 9
-1 and 9
100
(2x^2 - 3x +8) - ( 5x^2 + 8x - 2)
-3x^2 - 11x + 10
100
What is the standard form of a quadratic equation?
y= ax^2 + bx + c
200
What is -30 + 30 =
0
200
Evaluate 2x + 3y if x=3 and y=-5
-9
200
What quantity should be added to both sides of this equation to complete the square?
x^2 - 8x = 5
16
200
What is the product of (2x+1) and (3x-1)?
6x^2 + x -1
200
What is the VERTEX of the quadratic x^2 - 4x + 4?
(2,0)
300
What is -20 - (-30) =
10
300
Solve 3(x+3)=13
1 and 1/3
300
What are the solutions to the quadratic equation x^2 + 6x = 16?
2 and -8
300
Name the polynomial based on the number of terms
3x^2 + 7x - 4
Trinomial
300
Does the parabola of the quadratic equation -x^2 + 3x - 2=0 open upward or downward? Explain why.
Downward. If the leading coefficient is <0 the parabola will open downward.
400
What is (-60)(10)?
-600
400
Which of the two points lies on the line defined by the equation x + y = 7?
A. (-3, 11)
B. (30, -23)
B
400
What is one solution to 2x^2 - x -4 =0?
(1 + sqrt33)/4
400
Name the polynomial based on the number of terms
2x+1
Binomial
400
What are the roots of z^3 + 2z^2 + z ?
0 and -1
500
What is the PRODUCT of 12 and negative 20?
-240
500
3x+5 = 2(x-2) + 3
-6
500
How many times does the graph of y = 2x^2 - 2x + 3 intersect the x-axis?
none
500
What number should be added to both sides of the following equation to solve it by completing the square?
x^2 + 6x = 14
9
500
Does the quadratic equation x^2 + 8x = -16 have a maximum or minimum? Explain.
Minimum. Based on the leading coefficient one can conclude that the parabola opens upward. We know that if the parabola opens upward then it must have a minimum.