I Love Math
Write an algebraic expression for 27 decreased by a number
27-n
(any variable)
Evaluate
4+5x7-1
4+35-1
39-1
=38
If I add a zero to a number and get the number I started with, what is the property called?
ADDITIVE IDENTITY
If I multiply a number by 1 and get the same number I started with what property is that called?
MULTIPLICATIVE IDENTITY
True or False.
2(228) can be rewritten as 2(200+28) and solved using the Distributive Property?
TRUE
Write an algebraic expression for nine times of the square of a number
9x2
Evaluate
3(16-9)+12/3
21+4
=25
What is the domain of the following relation:
{(2,1), (-3, 5), (4, -2)}
Domain is the x values
2, -3, and 4
What is the range of the relation
{(2,1), (-3, 5), (4, -2)}
Range is the y values
1, 5, -2
Dalton jogs at an average rate of 2.25 meters per second. Find the time (in minutes) it will take him to jog 270 meters.
2.25 meters = 1 second
270 meters = X second
270 / 2.25 = 120 seconds = 2 minutes
Write a verbal expression for 2n + 3
Three more than two times a number
Two times a number plus three
Three more than twice a number
The sum of twice a number and 3
Evaluate
23[(12-4)(8/4)]
23[(8)(2)]
23[16]
8(16)
=128
For a relation to be a function, the range must not have any repeating numbers.
FALSE
The domain can not repeat!
True or False
A linear function is a straight line and a nonlinear function is not a straight line.
TRUE
Four and 1/5 plus 9 plus 2 and 3/5 equals what
6 and 4/5 plus 9
34/5 +9/1
34/5 + 45/5 = 79/5 = 15 and 4/5
Write an algebraic expression for the sum of the square of a number and 26.
x2+26
Evaluate 33(12-3x4)+1
27(12-12)+1
27(0)+1
0+1
=1
Simplify 14x-12x+4x2
4x2+2x
Simplify 4(x2+2y2)-16y2
4x2+8y2-16y2
4x2-8y2
Find the solution of 3n-13=38 if the replacement set is [12,14,15,17,18]
17
Write an algebraic expression for 5n2+9
(multiple answers)
The product of five and a number squared plus nine.
Nine more than the product of 5 and a number squared.
Solve 6+32 x 4 all over 2-4+6(2). Write your answer as a reduced fraction.
Top: 6+9 x 4=6+36=42
Bottom: 2-4+12=-2+12 = 10
Reduced: 42/10 = 21/5
Have Ms. Acup draw a graph so that you can describe the end behavior to her.
na
Evaluate 4x+(y-2)z if x=3, y=2, and z=9
4(3)+(2-2)(9)
12+(0)(9)
12+0
=12
ROCK BOTTOM