Systems of Linear Equations
1. Find the solution to the system, if it exists
x-7y=-11 and 5x+2y=-18
x=-4, y=1
1. Solve for z
4(z+2)-1>5-7(4-z)
z<10
1. Solve for u
u^2-5u-14=0
u=7,-2
True or false?
((2^2)^3) = 2^5
False (2^6)
How tall is Alex?
5'5''
2. Find the solution to the system, if it exists
7x-8y=-12 and -4x+2y=3
x=0, y=3/2
3. Solve for x
-1<4x+2<10
-3/4<x<2
2. Solve for x
x^2+15x=-50
x=-5,-10
True or False?
Two lines with positive slopes can be perpendicular.
False
What is Rushi's major?
Computer science
3. Find the solution to the system, if it exists
3x+9y=-6 and -4x+2y=8
x=-2, y=0
4. Solve for z
8<3-5z<12
-9/5<z<-1
3. Solve for y
y^2=11y-28
y=7,4
True or False?
x + 2 = 7 is called an inequality.
False (equation)
What's Alex's favorite restaurant?
Red Lobster
4. Find the solution to the system, if it exists
6x-5y=8 and -12x+2y=0
x=-1/3, y=-2
5. Solve for w
0<10w-15<23
3/2<w<19/5
5. Solve for w
6w^2-w=5
w=1,-5/6
True or False?
The additive inverse of -10 is 10.
True
What did Maribelle have for breakfast yesterday?
Banana!!
5. Find the solution to the system, if it exists
-2x+10y=2 and 5x-25y=3
No solution
6. Solve for x
2<(1/6)-(1/2)x<4
-23/3<x<-11/3
6. Solve for z
z^2-16z+61=2z-20
z=9
True or False?
-2^3 = (-2)^3.
True
What 3 countries does Maribelle have citizenships in?
US, Canada, Lebanon