Scientific Notation
Exponent Rules
y=mx+b
Multistep Equations
Random Facts
100
What is 10,000 in Scientific Notation?
there are 4 zeros in 10,000 so the exponent of 10 should be 4
1x104
100
(x2)(x5)
=x2+5
=x7
100
Write an equation where the slope, m=1/2 and the y-intercept b=2
y=1/2x+2
100
What is the only value for x that keep this equation true?
6+5(x+1)=26
distribute the 5
6+5x+5=26
combine the constants
5x+11=26
subtract 11 on both sides
5x=15
divide by 5
x=3
100
How tall is Ms. Domingo in inches?
Closest answer without going over wins!
70 inches
200
What is 1,000,000,000 in Scientific Notation?
there are 9 zeros in 100,000,000 so the exponent of 10 should be 9
1x109
200
(x6)(xn)=x8
n=?
x6+n=x8
6+n=8
subtract 6 from both sides
n=2
200
Write the equation of a line that has a slope of 3/4 and a y-intercept of -5
y=3/4x-5
200
What is the only value for x that keep this equation true?
6x+8=14+3x
move variables left by subtracting 3x on both sides
3x+8=14
move constants right by subtracting 8 on both sides
3x=6
divide by 3 on both sides
x=2
200
How many people are passing all of my development classes?
Hint: there are a total of 47 students taking development
24 students are passing
300
How many times larger is 1x106 than 1x103
=1x106/1x103
=1x106-3
=1x103
300
Simplify
[(2-3)(24)]-2=[2-3+4]-2
=[21]-2
=21x(-2)
=2-2
=1/22
=1/4
300
Write the equation for this line:
y=3/2x-3
300
How many solutions does this equation have?
3t+4=12+3t
NO SOLUTIONS
300
Name as many of the 50 states as you can.
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
400
How many times larger is 3x109 than 3x104
=3x109/3x104
=1x109/1x104
=1x109-4
=1x105
400
Where and what is the error?
Step 1: =56/52
Step 2: =56-2/51
Step 3: =54/5
Step 4: =53
Step 2:
The denominator should be 1, not 51
400
Write the equation for this line:
y=-3/4x+2
400
How many solutions does this equation have?
12y+6=6(2y+1)
INIFINITE SOLUTIONS
400
Read inbetween the lines
500
How many times larger is 8x105 than 4x103?
=8x105/4x103
=23x105/22x103
=23-2x105-3
=2x102
500
What value for x, make the following equation true?
4x/12x=1/3
1
500
The slope of this line is m=2/3
If I count a run of 6, how many units would I need to rise to plot another point on this line?
rise 4 units
because 2x2/3x2=4/6 rise 4, run 6
500
Is 3 a solution for the following equation?
2(h+1)=5h-7
YES!
500
forget it