CHAPTER 1 EXPRESSIONS, EQUATIONS, AND FUNCTIONS
Write the expression (4x+9) in verbal form
Four times a number plus nine.
Solve the equation shown.
x - 10 = -6x + 4
-2
a function whose graph is a line
linear function
Describe how the graph g(x) compares with f(x).
f(x) = 5x + 2
g(x) = 5(x + 7) + 2
Left 7
When graphing, do you use an open or closed circle for < ?
open
what is g(2) in g(x)=2x+7 ?
g(2) is/= 11
If 7x + 3 = 24, what is the value of 5 - 4x ?
-7
an equation between two variables that gives a straight line when plotted on a graph.
linear equation
Which transformation will occur if f(x) = x is replaced with f(x) + 2?
Vertical translation up by 2 units.
ou flip an inequality symbol when you...
multiple or divide by a negative number
consists of sums &/or products of numbers & variables
algebraic expression
Do your best to solve the equation shown.
-3n+7=-3n-5
no solution
Ax + By=C, where A, B, and C are not decimals or fractions, where A and B are not both zero, and where A is not a negative
standard form
Which transformation will occur if f(x) = x is replaced with 2f(x)?
Vertical stretch by a factor of 2
6x+10>5x-12
x>-22
the answer to a multiplication problem
product
Solve for x. 22−3x−22−3x=1222−3x−22−3x=12
x=−2
A number without a variable
constant
Which transformation on
f(x) = x^2
is g(x) = -x^2
Reflection across the x-axis.
| 2w - 1 | < 11
5 < w and w < 6
a letter or symbol that represents a number
Variable
Solve for x. 3x+2(1−3x)=0
x=2/3
the x-coordinate of a point where a graph crosses the x-axis
x-intercept
How did the equation shift from the parent function?
y = f(x) + c
Shifted up "c" units
| x + 3 | > 8
x < -11 or x > 5