Digit Dash

Factoring

1

Factor: y=2x²-5x-12

(2x+3)(x-4)

2

Factor:y=6x²-2x-88

(2x-8)(3x+11)

3

Factor:y=12x²+34x-90

(6x-10)(2x+9)

4

Factor:y=7x²+39.5x-15

(7x-2.5)(x+6)

5

Factor:y=6x²+2.75x-10.6875

(3x+4.75)(2x-2.25)

Zero Product Property

1

0=(x+12)(2x-40)

x=-12,x=20

2

4(x-42)(6x-54)=0

x=42,x=9

3

0=23(7x²-70)(2x-22)

x=3.1623,x=11

4

Nearest Thousandth*

(x³-28)(12x+180)

x=3.037,x=-15

5

23(3x³-32)+41(4x+31)=0

x=2.202,x=-7.75

Domain/range

1

y=3(x-10)²-23

Domain:XER

Range:y ≥ -23

2

y=14(x+31)²+41

Domain:XER

Range:y ≥ 41

3

y=4x³-12x+10

Domain:XER

Range:YER

4

y=10x³-4x+13

Domain:XER

Range:YER

5

y=√x-10

Domain:x≥10

Range:y≥0

System Of Equations

1

30=5a-12b 

45=a+6b

a=17.14

b=4.64

2

3x+2y=35

4x+6y=12

x=18.6

y=10.4

3

9x+16y=105

21x-4y=22

x=2.08

y=-5.39

4

4x-12y=23

4.6x+9y=-34

x=2.20

y=1.18

5

8.6x-3.2y=46.1

11.1x+9.6y=124.9

x=7.13

y=4.756

Solve for x,y Intercepts

1

y=6x²-3x+42

y=(0,42)

x=None

2

y=8(x-10)²-7

x=(10.94,0)

x=(-9.06,0)

y=(0,793)

3

y=4(x+6)³+11

y=(0,875)

x=(-7.401,0)

4

y=6/8(x+12)³-9

y=(0,1287)

x=

5

y=6|x-14|+8

y-int = (0,92)

x-int = (15.33,0)(-13.33,0)