Unit 1 Equations/Inequalities
What property is this?
2x - 2y = 2(x-y)
Distributive
How do you check if a graph is a function?
Vertical line test
What is the parent function of a absolute value expression?
f(x) = |x|
Factor.
5x^2 +15x
5x(x+3)
What is the only food that never spoils?
Honey
What are the three categories of rational numbers?
Integer, whole, natural
Find the x and y intercepts.
y= -6x -5
x-int: (-5/6,0) y-int: (0,-5)
Find all the transformations.
f(x) = -|x| - 5
reflect across x, down 5
Factor.
x^2+5x-36 = 0
(x+9)(x-4)
Which month of the year is National Ice Cream Month?
July (7/20)
Solve
|3-6w| = 39
w = -6 ,7
Find the equation of the line.
slope: -1/4 and (-2,6)
y=-1/4x + 11/2
Solve for the axis of symmetry value.
f(x) = -x^2 + 10x -17
x =5
Factor
12x^2 + 17x = 5
(3x+5)(4x-1)
What is the only U.S. state that can be typed in using only one row of a standard “QWERTY” keyboard?
Alaska
Solve
|5-3p| + 9 = 13p + 8
p = 3/8 (-2/5 is extraneous)
Solve for the equation.
Passes through (2,-2) and (-3,-17)
y=3x-8
Find the vertex.
f(x) = 2x^2 +8x + 2
(-2,-6)
What does i^49 simplify to?
Amazon first started as an online ____?
Bookstore
Solve and give the interval notation.
3/4x + 7 < 1 or 9(4-x) ≤ 36
(-∞ , -8) U [0,∞ )
Use any method to solve.
11y + 1 = -6x
0 = 43 -7x - 4y
(9,-5)
Change to vertex form.
f(x) = x^2 + 4x -5
f(x) = (x+2)^2 -9
Solve for x.
3(x+1)^2 = -240
x = -1+-4√ 5
July is national ice cream month but also what other day? (food)
hotdogs (July 16)