Parallel, Perpendicular, Neither
What must be true about slopes of parallel lines?
They are the same
Solve for x
x/5=6/10
x=3
If you are struggling to find the LCD of your fractions, what can you do to find another denominator that will work.
Multiply the denominators together. This will give you a common denom. Just might not be the LOWEST.
What is 24 equivalent to?
2*2*2*2 = 16
(x + 1)(x + 2)
What is x2+3x+2
What must be true about slopes of perpendicular lines? Must use correct vocabulary!
They are OPPOSITE RECIPROCALS
Solve for x
2/x=8/12
x=3
Find the Least Common Denominator of:
1/2 and 1/12
12
How can you rewrite 27 as a term with a base and exponent. (Hint: so it looks like ab)
33
(x + 4)(x + 3)
What is x2+7x+12
Are these lines parallel, perpendicular, or neither?
y=2x+7
y=-2x+9
Neither
Opposites but not reciprocals
Solve for x
(2x)/3=10/3
x=5
What is the least common denominator of the equation below:
(2x)/3 + 3/6 =10/3
6
Solve for x:
22x = 4
22x = 4
22x = 22
2x = 2
x=1
(x - 3)(x - 6)
What is x2-9x+18
What is the slope of any line parallel to the line below?
y=-1/3x +9
-1/3
Remember: Parallel slopes are the same
Solve for x
(2x-1)/9=-1/3
x=-1
After multiplying by the LCD and reducing, what is the coefficient of the x term in the equation below?
(2x)/4 + 3/5 =1/10
The coefficient of the x term will be 10!
The LCD is 20, so....
(2x*20)/4 + (3*20)/5 =(1*20)/10
(40x)/4 + 60/5 =20/10
10x+12=2
Solve for x:
32x-1 = 27
32x-1 = 27
32x-1 = 33
2x-1 = 3
2x=4
x=2
(x - 8)(x + 2)
What is x2-6x-16
What is the slope of any line perpendicular to the line below?
y=1/5 x +3
-5 or -5/1
Remember: Perpendicular slopes are opposite signs AND reciprocals.
Solve for x
(3x-2)/5=(2x+4)/5
x=6
Solve for x in the equation below:
(2x)/4 + 2/6 =10/3
(2x*12)/4 + (2*12)/6 =(10*12)/3
(24x)/4 + 24/6 =120/3
6x + 4 =40
6x=36
x=6
Solve for x:
5^(3x+1)=1/25
5^(3x+1)=1/25
5^(3x+1)=1/5^2
5^(3x+1)=5^-2
3x+1=-2
3x=-3
x=-1
(x - 3)(x + 7)
What is x2+4x-21