Algebra 1B
Evaluate 6b-16 when b = 3
2
Solve by graphing (use Desmos) m=-1 b=0
Show graph
7i
Explain PEMDAS
Parentheses, Exponents, Multiplication, Division, Add, Subtract
What is two times the sum of 3 and -6
-6
-2(7x)
-14x
Write the equation in slope intercept form: m=3/4 b=-2
y= 3/4x - 2
(5+4i)(5-4i)
41
What is standard form:
Ax2 + bx + c = 0
A rectangle has a length of 13 inches and a width of 6 inches. What is the perimeter of the rectangle? What is the area?
Perimeter - 24, Area - 36. sq.meters
True/False
Adding like terms, the expression 10X + 2X simplifies to 12x2
False
Solve the following systems of linear equations by graphing:
x+y=2
x-y=4
Desmos graph
Solve by factoring:
x2 - 4x = 21
x=-3, x=7
What is elimination?
Give example
What type of boundary line do you use in this problem?
0 < 2x - 3
Determine whether the number to the right is the solution.
4x+3=7;1
True
Solve using the substitution method:
-2x - y = -3 ]
y = -3x
(-3,9)
Solve using the square root property:
x2 = 16
x= +/- 4
What is the division property of Equality?
Show Example:
The solution set for a system of linear equations is all _____________________ that are solutions to both equations.
ordered pairs
-2y-8=2
y=-5
Solve the following systems of linear equations by elimination.
x+y = -2
x - y =6
(2, -4)
What is the quadratic formula? Write on white board:
What property is this?
a = b or a = -b if a2=b
What is the square root property?
Olivia has 5 times more candy then her friend, her friend has 6 candies how much candy does Olivia have?
Olivia has 30 candies.