Solving Equations
Solve for x:
2x + 13 = -15
x = -14
When do you flip the direction of the inequality sign?
When you multiply or divide by a negative number
What do we define as "the set of all x-values"?
The slope of a horizontal line?
Solve the following equation:
|x -5| = 3
x = {2, 8}
Find the solution to the following inequality:
3 - (2-x) < 5
x < 4
What is the range of the following relation?
{(2, 4), (-1, 0), (3, 4), (-10, -2), (3, 5)}
{-2, 0, 4, 5}
(0, -5)
How many solutions does the equation:
3x -24 = 3(x -8)
Infinitely many solutions
Translate the following statement into an inequality:
Four more than the quotient of a number and six is at least ten.
x/6 + 4 >= 10
A test to determine if continuous graphs are functions.
Vertical Line Test
Find the slope given the two points:
(-3, 5) and (-3, 8)
Undefined
Solve for x.
(6x - 15)/-3 = -1
x = 3
Write the interval notation of the following inequality:
x > 10
(10, infinity)
f(x) = -x + 7
Find f(-9)
f(-9) = 16
You start with $400 in your savings account. You withdraw $35 each month. What is the linear equation of this scenario?
y = -35x + 400
Solve for a:
2y + ax = 5b
(5b - 2y)\ x
Translate and solve the following inequality:
The product of a number and 2 is in between -10 and 18.
-10 <2x< 18
-8<x<9
j(x) = -2x2+4x-8
Find j(-3)
j(-3) = -38
What is the slope of the following equation?
3x - 4y = 16
3/4