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Laabri

2nd 9 weeks Midterm

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Last updated 4 months ago
20 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Ms. Gregson noted the resting heart rates of her students after gym class. 85, 68, 76, 73, 81, 80, 65, 67, 82, 79, 67, 78, 68, 83, 71, 82, 70, 80, 75, 69 Which box plot models the resting heart rates of Ms. Gregson’s students?

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2.

27. A driver knows a car can be driven for 26.3 miles using 1 gallon of gas. If the car uses a total of 2.5 gallons, which statement is true?

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3.

A function is defined by the equation $f(x) = -3x + 2$. What is the average rate of change for the function on the interval from $x = -2$ to $x = 2$?

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4.


What is the average rate of change of the function from $x = 1$ to $x = 3$?

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5.

The graph of the function, f(x), models the gallons of fuel, in thousands, remaining in a tanker truck x minutes after it starts filling buses with fuel.

What is the most reasonable domain for the graph of the function?

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6.

Mr. Ramirez writes the equation shown. He asks four students to solve the equation for y.

The table shows the students’ responses.

Which student responds to Mr. Ramirez’s question correctly?

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7.

Mrs. Robinson keeps a record of the test scores in her class. The data can be categorized in a table as shown.

What percent of students who scored a 70 or above are boys?

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8.

The box plots show the scores of two groups of students on a recent grammar quiz.

Which statement is correct?

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9.

Consider the linear function shown.

Which statement(s) is (are) true? Select ALL that apply.

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10.

A crane lifts construction materials from a palette to the top of a building at a constant rate. If the equation $y = 4x + 3$ models the height of the materials, y, in feet, after x seconds of lifting, which statement is true?

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11.

A student is solving the equation, as shown.
$7(x + 2) - 5(2x + 1) = 0$
$7x + 14 - 10x - 5 = 0$
$-3x + 9 = 0$
Which could be the next step to solve the equation correctly, and why?

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12.

The table shows a student’s solution to the equation
.

Which statement is true?

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13.

A gym member purchases a prepaid fitness card. The expression

represents the amount of money left on the card after attending x fitness classes.

Which statement is true?

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14.

The expression $0.80(x - 15)$ represents the total cost, in dollars, that a customer pays for groceries after a store discount is applied and a coupon for 20% off is used, where $x$ is the original cost of the groceries. What does the −15 represent?

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15.

Right triangle with sides labeled 6x - 3, 7x + 2, 5x + 6, and altitude labeled 4x + 4. Which expression represents the area of the triangle?

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16.

Which expressions are equivalent to $49x^2 - 64$? Select ALL that apply.

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17.

A customer orders b burgers and f fries for a total of $240 from a local café. If each burger costs $8, and each order of fries costs $4, which equation represents the total cost of the customer’s order?

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18.

The linear equation shown in the box is graphed on a coordinate plane.

Graph of the equation y = 2x - 3, showing a straight line with a positive slope intersecting the y-axis at -3 on a coordinate grid.

Which coordinate represents a solution to this equation, and why?

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19.

An equation is graphed on the coordinate plane.

Graph showing a line passing through points (-5,-1), (0,0), and (5,1) on a coordinate plane.

Which equation matches the graph?

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20.

A relation is defined by the coordinates shown.

$\{(-5, -5), (-3, -7), (-1, -2), (-1, 0), (1, 0), (3, 7), (5, 7)\}$

Removing which coordinates will make the relation a function?