Translating Expressions
fifty less twenty-two
50-22
What test can be used to determine if a graph is a function or not?
The Vertical Line Test
Evaluate when x=2 and y=-3
x2 - 4y3
22 - 4(-3)3 = 112
What is the square root of 121?
AND What is the negative square root of 225?
11 AND -15
Write the algebraic expression: A number into 18
18/n
18 ÷ n
four more than twice a number
2n + 4
Is the following table of values a function? Why or why not?
x y
1 4
2 5
4 3
2 1
No, because 2 is paired with both 5 and 1. Each input does not have exactly one output.
Evaluate when x=3, y=-1, and z=-7
2x + 3(z+y)
23 + 3(-7+(-1)) = -16
What is the plus minus square root of 289?
+- 17
Write the expression:
-2 ⋅ e ⋅ e ⋅ e ⋅ e ⋅ e ⋅ w ⋅ w
-2e5w2
-2e5⋅w2
The difference of a number squared and three
n2 - 3
Determine whether the scatter plot would show a (+), (-) or (no) relationship...
"Height of students and number of jolly ranchers eaten"
No relationship
Evaluate when a=2, b=3, c=-6, d=0
-5a2 + 3b -(a+c) + 4d
-5(2)2 + 33 -(2+(-6)) + 40 = 12
Write this expression using exponents:
4 ⋅ 2 ⋅ 3 ⋅ x ⋅ x ⋅ x ⋅ g ⋅ g
24x3g2
24x3 ⋅ g2
What is the function rule? (Equation)
Jake (j) is one and a half years less than two times as old as his sister (s).
j = 2s - 1.5
eleven more than a number less two
n + 11 - 2
Determine whether the scatter plot would show a (+), (-) or (no) relationship...
"Temperature and Ice cream Sales"
Positive Relationship
Evaluate when e=4, f=10, g=2
-(eg) + f - 2ge
-(42) + 10 - 2(24) = -38
Estimate the square root of 78 to the nearest positive integer.
9
Fill in the mathematical symbols to make the equation true. (×, ÷, +, -)
111 __ (3 __ 2) __ 8 = 58
111 × (3 × 2) - 8 = 58
Three times the sum of seven and a number cubed.
3(7+n3)
Determine whether the scatter plot would show a (+), (-) or (no) relationship...
"Math classes you miss and your test scores"
Negative Relationship
Evaluate when a=2, b=4, c=-3, d=1, e=0
3a + 2a+d - 5e + 3(a+c) + b2
32 + 23 - 50 + 3(2+(-3)) + 42 = 29
The square root of 233 lies between which two consecutive numbers?
Between 15 and 16
Order these integers:
-2, √64, √42, -√25, 3
-√25, -2, 3, √42, √64