Download Warm-up, Tuesday, Jan. 10th

Warm-up, Monday, Jan. 9, 2011
Welcome Back. Happy New Year!
• Textbook p. 726 prob. 9, 12, 13
Warm-up, Tuesday, Jan. 10th
Take out your homework!
Part 1: Determine whether the ordered pair is a
solution.
(-3, 5); 9x + 7y = 8
8x – 9y = -69
Part 2: Solve by substitution.
1) x + y = 4
y =3x
2) 2x +5y = -4
3x – y = 11
Warm-up: January 12, 2011
Take out your homework.
1.Is the function even, odd or neither?
F (x) = 4x3 +3x
2. Solve the system using any method of
your choice.
x2 y4

3
2
3
x y x y 5


5
2
2
Warm-up: Friday, January 13, 2011
Take out your homework.
• Let x represent one number and let y
represent the other number. Use the given
conditions to write a system of equations.
• The sum of two numbers is 2. If one number
is subtracted from the other, their difference
is 8. Find the numbers.
• The sum of three times a first number and
twice a second number is 8. If the second
number is subtracted from twice the first
number, the result is 3. Find the numbers.