Vocab/Translate
Set of input values, or x-values
name the four inequality symbols
greater than, less than, greater than or equal to, less than or equal to
Give the interval notation for
-3 < x < 4
(-3, 4)
[ -2, 4 )
-2 ≤ x < 4
a point on the graph where y=0 and crosses the x-axis
x-intercept
What inequality symbols do you use an open circle with
< >
write the interval notation:
x > 0
[0, ∞)
write the inequality notation
[5,8]
5 ≤ x ≤ 8
the highest output that a function reaches on its graph (hill)
maximum value
When using interval notation, how do we represent a closed circle
[ ] brackets
Give interval notation:
–3 ≤ x ≤ 7
[ -3, 7 ]
write the interval notation
( -6, 7 )
-6 < x < 7
set of output values, or y-values
range
these inequality signs use this type of circle
≤ or ≥
closed circle
Give interval notation: –1 < x ≤ 6
(-1,6]
(4, 10]
4 < x ≤ 10
a notation used to write a range of numbers using parentheses and brackets
interval notation
Draw the graph for
x > 4
open circle at 4 going to the right
write the interval notation
-3 < x < 9
(-3, 9)
Solve:
-2|x+ 5| + 8 = 6
{-6, -4}