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ISEE Lower Level Quantitative : Lines

Study concepts, example questions & explanations for ISEE Lower Level Quantitative

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All ISEE Lower Level Quantitative Resources

20 Diagnostic Tests 114 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

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Example Question #1 : How To Find Length Of A Line

On a number line, what is the length of a line that stretches from $\dpi{100} -3$ to $\dpi{100} 13$ ?

Possible Answers:

$\dpi{100} 10$

$\dpi{100} 16$

$\dpi{100} 13$

$\dpi{100} 3$

Correct answer:

$\dpi{100} 16$

Explanation:

$\dpi{100} -3$ is $\dpi{100} 3$ units to the left of zero on the number line. $\dpi{100} 13$ is $\dpi{100} 13$ units to the right of zero on the number line.

The length of the line would then be $\dpi{100} 13+ 3=16$ .

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Example Question #1 : Lines

If the radius of a circle is equal to $\frac{1}{4}x$ , then what is the value of the diameter?

Possible Answers:

$\frac{1}{2}x$

$\frac{1}{4}x$

Correct answer:

$\frac{1}{2}x$

Explanation:

The length of a dimater is twice the length of the radius. Given that the length of the radius is $\frac{1}{4}x$ , the dimater will be equal to $\frac{1}{4}x\cdot2=\frac{2}{4}x=\frac{1}{2}x$ .

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Example Question #1 : How To Find Length Of A Line

The length of is and the length of is .

Screenshot_2015-03-29_at_2.20.22_pm

What is the length of in terms of and ?

Possible Answers:

y+x

x-y

y-x

x+y

x^2

Correct answer:

x-y

Explanation:

Using the segment addition postulate, we know that AC+CD=AD . We can substitute and for and and solve for .

Substitute: y+CD=x

Subtract y from both sides:

Simplify: CD=x-y

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Example Question #4 : How To Find Length Of A Line

The length of BC is x and the length of CE is y.

Screenshot_2015-03-29_at_2.20.22_pm

What is the length of segment ?

Possible Answers:

x+y

x-y

$x\cdot y$

y-x

x+x+y+y

Correct answer:

x+y

Explanation:

Segments and make up segment . Using the segment addition postulate, add the lengths of and to find the length of .

BC+CE=BE

Substitute and : x+y=BE

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Example Question #1 : How To Find Length Of A Line

The length of is and the length of is .

Screenshot_2015-03-29_at_2.20.22_pm

What is the length of segment ?

Possible Answers:

$2\cdot x$

$x\cdot y$

x+y

y-x

x-y

Correct answer:

y-x

Explanation:

Using the segment addition postulate, we know that AD+DE=AE . We can substitute and for and and solve for .

Substitute: x+DE=y

Subtract y from both sides:

Simplify: DE=y-x

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Example Question #1 : How To Find Length Of A Line

The length of is and the length of is .

Screenshot_2015-03-29_at_2.20.22_pm

What is the length of segment in terms of and ?

Possible Answers:

y-x

x-y

x+y

$2\cdot y$

$x\cdot y$

Correct answer:

x+y

Explanation:

Segments and make up segment . Using the segment addition postulate, add the lengths of and to find the length of .

AB+BD=AD

Substitute and : x+y=AD

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Example Question #1 : How To Find Symmetry

Number_line_midpoint

is the midpoint of the number line that extends from to . What is the value of ?

Possible Answers:

Correct answer:

Explanation:

Find the average of the two endpoints to find their midpoint. To find the average of two numbers, add them together and divide by two.

$\frac{-3 + 7}{2} = \frac{4}{2} = 2$

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Example Question #661 : Geometry

How many lines of symmetry does a square have?

Possible Answers:

Correct answer:

Explanation:

A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does sides. Since a square has four sides, the correct answer is 4!

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Example Question #2 : Lines

How many lines of symmetry does an octagon have?

Possible Answers:

Correct answer:

Explanation:

A line of symmetry divides a shape into two equal and identical halves. Any regular shape has as many lines of symmetry as it does sides. Since octagons have eight sides, the correct answer is 8.

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Example Question #4 : How To Find Symmetry

How many lines of symmetry does a rectangle have?

Possible Answers:

Correct answer:

Explanation:

A line of symmetry is the imaginary line that you draw through a shape so that you can fold the image over the line and have both halves match exactly. Any regular shape has as many lines of symmetry as it does total sides. Since a rectangle has four sides, the correct answer is 4!

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All ISEE Lower Level Quantitative Resources

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ISEE Lower Level Quantitative : Lines

Study concepts, example questions & explanations for ISEE Lower Level Quantitative

All ISEE Lower Level Quantitative Resources

Example Questions

Example Question #1 : How To Find Length Of A Line

Example Question #1 : Lines

Example Question #1 : How To Find Length Of A Line

Example Question #4 : How To Find Length Of A Line

Example Question #1 : How To Find Length Of A Line

Example Question #1 : How To Find Length Of A Line

Example Question #1 : How To Find Symmetry

Example Question #661 : Geometry

Example Question #2 : Lines

Example Question #4 : How To Find Symmetry

All ISEE Lower Level Quantitative Resources

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