The Quadratic Formual
Quadratics and Functions
Solving quadratic
simplifying radicals
system of linear equations
100

What is x2-8x=20

x={-2,10}

100

solve the quadratic equation by factoring : x2-11x+24=0

3,8

100

x2+4x+3=0

x=(-3,-1)

100

√24

2√6

100

y=2x+1 

  y=-x+7

(2,5)

200

What is 3x2-12=0

x={-2,2}

200

solve the quadratic equation : x2+6x-16=0

8,2

200

x2=6x-27=0

x=(-9,3)

200

√48

4√3

200

3x+2y=16

x-y=1  x=1+y

(3.6,2.6)

300

What is x2+15x=6

X+ (-9,0)

300

for f (x)=x2-4x-4x-12 find the average rate of change on the interval from x=2 to x=5

3

300

x2+10x+25=0

X=(-5)

300

√175

5√7

300

2y+3y=12

4x+6y=24

(6,0)

400

What is 2x2+7x+3=12

X=(-9/2,1)

400

A rectangle has length 2w+3 and width w. The area is 44 square units. write an equation that can be used to find w.

2w2+3w-44=0

400

x2+x-2=0

x={-2, 1}

400

√72

6√2

400

5x-2y=4

.3x+2y=20

(3,5.5)

500

What is -x2-10x-21=0

X=(-7,-3)

500
h(t)=16x2+64t+5 models a ball's height.at what time does it reach max height, and over whole interval of time is hight increasing 

0<+2

500

x2 -x -20 =0 

x={-4,5}

500

√90

3√10

500

A store sells notebooks for 3$ each and pens for 2$ each a student buys 8 items total and spends 19$ write and solve a system to find how many notebooks and pens the student bought. 

(3,5)

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