Unit 9 Jeopardy

Solve

100

4x² + 7 = 43

x = +- 3

200

m² - 8m - 20 = 0

m = -2

m = 10

300

6p² + 20p = 0

p = 0

p =-10/3

400

(y - 5)² + 6 = 13

y = 5+- sq root 7

500

4x² - 24x = -32

x = 2

x = 4

Find The y-Intercept

100

y = 2a² + 12a - 5

(0,-5)

200

y = 2x² + 3x - 9

(0,-9)

300

y = x² + 6x + 8

(0,8)

400

y = -2(x + 1)² + 5

(0,3)

500

y = -2(x + 4)² - 6

(0,-38)

Find The Vertex

100

y = 3(x -4)² -7

(4,-7)

200

Y = -2(x + 1)² + 5

(-1,5)

300

Y = -2(x+4)² -6

(-4,-6)

400

Y = x² + 6x + 8

(-3,-1)

500

Y = 2a² + 12a - 5

(-3,-23)

Convert To Vertex Form

100

y = 3x² + 12x - 8

y = 3(x + 2)² - 20

200

y = -2x² + 8x - 7

y = -2(x - 2)² + 1

300

y = 6x² - 12x + 9

y = 6(x - 1)² + 3

400

y = 3x² + 6x - 8

y = 3(x + 1)² - 11

500

y = 5x² + 2x +9

y = 5(x + 0.2)² + 8.8

Number Of Solutions

100

n² + 3n + 5 = 0

discriminant = -11

number of real solutions = no real solution

200

2x² - 4x - 3 = 0

discriminant = 40

number of real solutions = 2

300

5x² + 3x + 6 = 0

discriminant = -151

number of real solutions = no real solution

400

3x² - 5x - 1 = 0

discriminant = 37

number of real solutions = 2

500

4x² + 4x + 1 = 0

 discriminant = 0

number of real solutions = 1