Math project

x-intercepts

100

-3x+2y-=12

x=-4

200

-5x+4y=20

x=-4

300

2x+9y=18

x=9

400

 5x + 3y = 15

x=3

500

4x + 4y = 12

x=3

absolute values

100

l2x-3l=1

x=2 x=1

200

|v+8|-5=2

v=-1 v=-15

300

|x|+2=6

x=4 x=-4

400

3|-8x|+8=30

x=+-11/22

500

|4x+2|+|2x-5|=11

x=-4/3   x=2

y-intercepts

100

find the y-int 5x+2y=-5

-5/2

200

-3x+2y=12

y=6

300

5x + 10y = 30

y=3

400

 x - 3y = - 6

y=1/3

500

 - 5x - 7y = 1

y=-1/7

polynomials

100

3x²-2+7x=0

x=-7+square root 73/6

200

x²-25x+24=0

x=1  x=24

300

5x²-2x=-1

no real solutions

400

r²-8r-15=0

r=4 

500

s²-s=0

x=1

linear equations

100

Solve for m: 2(m + 6) = 48

m=18

200

John and Aaliyah are saving money. John starts with $105 and saves $5 per week. Aaliyah starts with $5 and saves $15 per week. After how many weeks do they have the same amount of money?

10 weeks 

equation:y=5x+105, y=15x+5

300

Natalie and Kira collect rocks. Together they collected 50 rocks. Natalie collected 10 more rocks than Kira. How many rocks did each of them collect?

Natalie collected 30 rocks and Kira collected 20 rocks

equation:B+K=50  B=K+10

400

Mariah and Amaya are saving money. Mariah starts with $80 and saves $10 per week. Amaya starts with $120 and saves $6 per week. After how many weeks will they have the same amount of money?

10 weeks 

equation:M=10x+80  L=6x+120

500

 Myla and Jhene collect stamps. Together they collected 200 stamps. Myla collected 40 more stamps than Jhene. How many stamps did each of them collect?

Myla collected 120 stamps and Jhene collected 80 stamps

equation:M+J=200  M=L+40