A1 Chapter 9: Solve Quadratics

Solve the following Quadratic with Graphing

100

Solve the following Quadratic with Graphing:

x^2-14x+49=0

x = 7

200

Solve the following Quadratic with Graphing:

-x^2+2x-8=0

No solution

300

Solve the following Quadratic with Graphing:

x^2-13x+42=0

x = 7 and x = 6

400

Solve the following Quadratic with Graphing:

-16 = x^2+8x

x = -4

500

Solve the following Quadratic with Graphing:

2x + 1 = -x^2

x = -1

Solve each Quadratic using Square Roots

100

Solve using Square Roots.

x^2=81

x = 9 and -9

200

Solve using Square roots.

3x^2-48=0

x = 4 and -4

300

Solve using Square Roots.

x^2+4=0

No solution (can't square root a negative number)

400

Solve using Square Roots.

5x^2-30=95

x = 5 and -5

500

Solve using Square roots.

(x+2)^2=64

x = 6 and -10

The Quadratic Formula

400

Write the song lyrics to the Quadratic Formula

x equals opposite b

plus or minus the square root

of b-squared minus 4ac

all over 2a

500

Write the Quadratic Formula EQUATION

x=(-b+-sqrt(b^2-4ac))/(2a)

Solve each Nonlinear System

100

Solve.

y= 8x^2-16x

y= -8

(1, -8)

200

Solve.

y=x^2-6x+11

y=-x+7

(1,6) and (4,3)

300

Solve the Nonlinear System.

y=1/4x^2-8x+2

y=-2x+2

(0,2) and (24, -46)

400

Solve the Nonlinear System.

y=-x+1

y=x^2-3x+3

No Solution

500

Your friend throws a clay disc in the air and you shoot an arrow at it.
The height of the arrow can be modeled by

h = 0.6t + 5

and the height of the clay disc can be modeled by

h=-16t^2+10t+4

When will the arrow and the clay disc be at the same height?

0.7 seconds