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9-1, 9-2, &
9-7
9-3
9-4
9-5
9-6
100
Find the equation of the axis of symmetry and the coordinates of the vertex. y = 2x^2 + 3
x = 0; (0,3)
100
Solve by graphing the related function. 1/2x^2 + 1 = 0
No Solution
100
Use the Zero-Product Property to solve the equation. -3n(2n - 5) = 0
n = 0, n = 2.5
100
Find the value of c such that the expression is a perfect-square trinomial. x^2 + 18x + c
c = 81
100
Find the number of real-number solutions. x^2 - 2x + 3 = 0
0
200
Find the equation of the axis of symmetry and the coordinates of the vertex. y = -3x^2 + 12x + 1
x = 2; (2, 13)
200
Solve the equation by graphing the related function. 3x^2 - 12 = 0
x = 2, -2
200
Solve by factoring. x^2 - 14x + 45 = 0
x = 5, x = 9
200
Solve the equation by completing the square. x^2 - 2x = 35
x = -5, x = 7
200
Find the number of real-number solutions. 9x^2 + 12x + 4 = 0
1
300
Which model is most appropriate? (-2, -3), (-1, 0), (0, 1), (1, 0), (2, -3)
Quadratic
300
Solve the equation by finding square roots. 5x^2 - 20 = 0
x = 2, -2
300
Solve by factoring. 2x^2 - 21x - 36 = 0
x = -3/2, x = 12
300
Solve the equation by completing the square. x^2 + 7x - 144 = 0
x = -16, x = 9
300
Use the quadratic formula to solve the equation. 2x^2 + 5x + 3 = 0
x = -1.5, x = -1
400
Which type of function best models the data? (1, 248), (2, 307), (3, 366), (4, 425), (5, 484)
Linear
400
Solve the equation by finding square roots. 2x^2 - 32 = 0
x = 4, -4
400
DOUBLE JEOPARDY!! Solve by factoring. 7n^2 + 16n + 15 = 2n^2 + 3
n = -2, n = -6/5
400
Find the vertex of the parabola by completing the square. y = x^2 + 4x - 16
(-2, -20)
400
Use the quadratic formula to solve the equation. 2x^2 - x - 120 = 0
x = -7.5, x = 8
500
What type of function best models the data? (0, 1), (1, 1.2), (2, 1.44), (3, 1.728), (4, 2.0736)
Exponential
500
Find the radius of a circle with an area of 90 cm^2
5.4 cm
500
You are building a rectangular deck. The area of the deck should by 250 ft^2. You want the length of the deck to be 5 ft longer than twice its width. What should the dimensions of the deck be?
10 ft by 25 ft
500
Solve the equation by completing the square. 3x^2 + 18x = 21
x = -7, x = 1
500
Use the quadratic formula to solve the equation. 3x^2 + 19x = 154
x = -11, x = 14/3