Two Step Equations
3x+5 = 14
x=3
Solve and graph the solution on a number line:
3x+4<=13
x<=3
Evaluate f(x)=3x-2 when x=4
f(x)=10
What is the outlier in this data?
45,50,55,60,120
120
2x-7=13
x=10
Solve and graph the solution on a number line:
2x-5>7
x>6
Evaluate f(x)=4x+2 when x=-1
f(x) = -2
What is the outlier for this data?
0,10,12,15,18,20
0
4x+6=-10
x=-4
Solve and graph the solution on a number line:
1/2x+3>=9
x>=12
The table shows x and y values. Is this a function?
x: {-2,0,3,-2}
y:{4,7,9,4}
No, the x values repeat
Find the mean, median and mode for
12,15,20,20,22,25,30
mean: 20.57
median: 20
mode: 20
1/2x+4=10
x=12
Solve and graph the solution on a number line:
5x-6<-1
x<1
Write a function rule for this relationship
Input: 2,4,6
Output: 5,9,13
f(x) = 2x+1
What is the mean?
72,75,78,80,85,88,90
mean = 81.14
5x-9=16
x=5
Solve and graph the solution on a number line:
-3x+8<=14
x>=-2
g(x) = 2x^2-5x+1
what is
g(3)
g(3) = 4
From these test scores, how many scored above the mean? 72,75,78,80,85,88,90
3 students