6
x ≤ -4
7x + 5 – 4x – 16
3x−11
What is the domain?
-1 ≤ x ≤ 5
f (x) = x + 7; f(5)
12
Identify the slope and y-intercept of the
equation 2x + 5y = 20
m=-2/5
b=4
2
x > 2/5
9 – 3(2x + 7) + 4x – 45
−2x−57
What is the range?
y ≤ 5
f (x) = −x + 6x − 4; f (5)
1
Write a linear equation given the graph.
y=7/2x-3
3
x ≤ −7 or x > 8
-2(2x – 19) – 5(x – 6) – 4
−9x+64
What is the domain and range?
All Real Numbers
g(4) + g(−1)
g(x) = x2 + 2x
23
Identify the x and y-intercepts of the equation.
4x - y = 4
x=1
y=-4
−82 ≤ 9
−9≤x≤−3
Solve the equation for y.
3(2y + 4) = 8y
y=6
What is the domain?
{-3, -2, 1, 3}
−2 X g(−5)
g(x) = x2+2x
-30
What is the equation of this line?
y = -2
An export company is reserving some containers to ship cargo overseas, and the expense must be under $39,000. A standard container costs $1,200 and a large container costs $3,800.
x = the number of standard containers
y = the number of large containers
1200x + 3800y < 39,000
−f + 2 + 4f = 8 − 3f
f=1
Is this a function?
Yes.
If f (x) = -13, find x.
f (x) = 8 − 3x
X=7
What would the perpendicular slope of this line be?
y = -3x + 2
m=1/3