What types of transformations create images that are congruent to the original shape?
Translations, reflections, and rotations
What is the simplified form of this expression:
5(2+9b) - 4 ?
6 + 45b
Is this graph a function or not a function?
Not a function
What type of association does this scatterplot have?
Weak, negative, linear association
Greg has already baked 12 pies, and he can bake 2 pies with each additional cup of sugar he buys. How many additional cups of sugar does Greg need in order to bake a total of 42 pies?
15 cups of sugar
In a dilation, what scale factors make a shape smaller?
Any number less than 1
What is the value of a in this equation?
2a + 7 = 35
a=14
Is this table a function or not a function?
A function
What is the coordinate of the outlier in this scatterplot? (Estimate)
(8.5,39)
What is the value of x on the similar figure?
63
What is the rule of this transformation?
(x, y) -> (2x, 2y)
What is the value of f in this equation: 3=f/6-1 ?
f=24
What is the slope?
-3/2
This graph shows how the cost of a cab ride depends on the distance in miles. What is the length of an $8 cab ride?
2.5 miles
A, rational and irrational numbers have no numbers in common.
What is the rule of this transformation?
(x, y) -> (x - 2, y - 5)
What is the value of s in the equation: –4 + 5s = 7s − 10 ?
3
What equation describes the line of best fit in the scatterplot below?
y=5/9x+30
y=0.56x+30
Does this situation represent a proportional relationship?
"The cost of ordering smoothies on DoorDash for $6 per smoothie with a delivery charge of $3."
No, this is not proportional, because of the delivery charge.
The length of a rectangular frame is 15 inches, and the width of the frame is 8 inches. What is the length of the diagonal of this frame in inches?
17 in
What is the coordinate B' after reflecting the figure over the y-axis?
(1,-3)
What is the value of x if these expressions are equivalent?
2x-15
5x
x = -5
The scatterplot and line of best fit below show the relationship between how early students turned in an exam (measured by minutes remaining in the exam) and their exam scores. What does the y-intercept of 87 mean in context? Answer in a complete sentence.
The students who turned in the exam exactly at the end of the class earned an average score of 87 points on their exam.
This scatterplot has a line of best fit with equation y=-0.3x+70 . What is y when x=70 ?
x=49
5.8