Expressions
When x = 4, what is 2x^2?
32
A polynomial with one term is called a _____.
Monomial
Solve. (2x - 1)(3x + 3) = 0
x = 1/2 , -1
Where do 2x+y=1 and -2x+y=1 intersect?
(0, 1)
Solve the linear system:
2x + 3y = 11
-2x + 5y = 13
(1,3)
Evaluate (7/4)^2
49/16
A polynomial with two terms is called a _____.
Binomial
Solve. x^2 + 3x = 18
x = -6, 3
What is the Slope-intercept form of a linear equation?
(y - y1) = m(x - x1)
Solve the system of equations.
4x + 3y = 2
5x + 3y = -2
(-4,6)
Evaluate (6/2)(1+2)
9
A term in a polynomial can have these parts.
Numbers, variables with whole number exponents, or variables with coefficients and whole number exponents.
Factor the polynomial: x^2 + 4x +3
(x + 3) (x + 1)
What is the y-intercept of the equation? 2x +3y = 9
Solve the system:
5x + 2y = 16
3x - 4y = 20
(4,-2)
Write as an equation: The product of a number x and 12 is 60.
12x = 60
Terms in a polynomial are separated by _______.
Addition or subtraction
Factor completely: x(x-8) + 2(x-8)
(x-8)(x+2)
What is the y-intercept of the equation? 3x - 6y = 9
y = -3/2
Solve the system:
4x + 5y = 35
-3x + 2y = -9
(5,3)
Write as an inequality: The sum of 13 and a number t is more than 24.
13 + t > 24
FOIL (2x - 1)(3x + 3)
6x^2 + 3x - 3
Factor completely: x^3 + x^2 + 5x +5
(x+1)(x^2+5)
Write the equation of the line, in slope-intercept form, of the line that passes through (-3,1) and (0,-8).
y = -3x -8
How many solutions does this system have?
y = 8x - 1
-16x + 2y = -2
Infinitely many.