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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

The graph of the linear function f is shown, where y = f(x) . What is the y-intercept of the graph of f ?

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

Each rock in a collection of 70 rocks was classified as either igneous , metamorphic , or sedimentary , as shown in the frequency table.

If one of these rocks is selected at random, what is the probability of selecting a rock that is igneous?

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

Each side of square A has a length of 13 inches. Each side of square A is multiplied by a scale factor of 3 to create square B. What is the length, in inches, of each side of square B?

A10B13C16D39

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

The function

gives a toy car's height above the ground f(x) , in inches, x seconds after it started moving on an elevated track , where

. Which of the following is the best interpretation of the vertex of the graph of y = f(x) in the xy-plane?

AThe toy car's minimum height was 3 inches above the ground.BThe toy car's minimum height was 6 inches above the ground.CThe toy car's height was 3 inches above the ground when it started moving.DThe toy car's height was 6 inches above the ground when it started moving.

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

If 3x = 8 , what is the value of 21x ?

A1B15C31D56

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

A car travels at a speed of at least 25 miles per hour but no more than 50 miles per hour for a certain part of a trip. Which inequality represents this situation, where x is the speed of the car, in miles per hour, on this part of the trip?

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

A list of 10 data values is shown.

10 , 14 , 22 , 6 , 24 , 26 , 14 , 8 , 8 , 8

What is the mean of these data?

A8B12C14D20

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

The function f gives the estimated height, in feet , of a willow tree x years after its height was first measured. Which statement is the best interpretation of 3 in this context?

AThe tree will be measured each year for 3 years.BThe tree is estimated to grow to a maximum height of 3 feet.CThe estimated height of the tree increased by 3 feet each year.DThe estimated height of the tree was 3 feet when it was first measured.

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

Which expression is equivalent to

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

For the given function f , the graph of y = f(x) in the xy-plane passes through the point (0,b) , where b is a constant. What is the value of b ?

A0B8C17D25

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

Scientists collected fallen acorns that each housed a colony of the ant species P. ohioensis and analyzed each colony's structure. For any of these colonies, if the colony has x worker ants, the equation

, where

, gives the predicted number of larvae , y , in the colony. If one of these colonies has 35 worker ants , which of the following is closest to the predicted number of larvae in the colony?

A114B48C38D26

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

The given equation relates the positive numbers b , x , and y. Which equation correctly expresses x in terms of b and y ?

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

The solution to the given system of equations is (x,y). What is the value of 24x ?

A-12B-6C6D12

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

Odalys ordered mulch and river rock, which cost a total of

, for her home. The given equation represents the relationship between the number of cubic yards of mulch , x , and the number of tons of river rock , y , Odalys ordered. How much more , in dollars , did a ton of river rock cost Odalys than a cubic yard of mulch?

A4.75B19.5C24.5D44

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

James purchased a certain baseball card on January 1 . The function

, where

, gives the predicted value, in dollars, of the baseball card x years after James purchased it. What is the best interpretation of the statement " f(7) is approximately equal to 72 ” in this context?

AWhen the baseball card's predicted value is approximately 72 dollars , it is 7% greater than the predicted value, in dollars, on January 1 of the previous year.BWhen the baseball card's predicted value is approximately 72 dollars , it is 7 times the predicted value, in dollars, on January 1 of the previous year.CFrom the day James purchased the baseball card to 7 years after James purchased the card, its predicted value increased by a total of approximately 72 dollars.D7 years after James purchased the baseball card , its predicted value is approximately 72 dollars.

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

At what value of x does the graph of

reach its minimum in the xy-plane?

A-23B-9C9D18

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Chapter 44 · 2025.6 : B-A (analysis included) · MATH 1

The function P models the population , in thousands , of a certain city t years after 2009 . According to the model, the population is predicted to increase by n% every 8 months. What is the value of n ?