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High School Math : Pre-Algebra

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8 Diagnostic Tests 613 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #651 : Pre Algebra

Graph the point (2,1) .

Possible Answers:

Question_6_incorrect_3

Question_6_correct

Question_6_incorrect_1

Question_6_incorrect_2

Correct answer:

Question_6_correct

Explanation:

The first number in the ordered pair indicates how far left or right the point resides from the origin. The second number in the ordered pair indicates how far up or down the point resides from the origin. Numbers that are positve are located on the right side and above the origin while negative numbers are located to the left of or below the origin. This point resides to 2 units to the right and 1 unit above the origin.

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Example Question #652 : Pre Algebra

Graph the point (-3,7) .

Possible Answers:

Question_7_incorrect_3

Question_7_correct

Question_7_incorrect_2

Question_7_incorrect_1

Correct answer:

Question_7_correct

Explanation:

The first number in the ordered pair indicates how far left or right the point resides from the origin. The second number in the ordered pair indicates how far up or down the point resides from the origin. Numbers that are positve are located on the right side and above the origin while negative numbers are located to the left of or below the origin. This point is located 3 units to the left and 7 units above the origin.

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Example Question #653 : Pre Algebra

Graph the point (4,-5).

Possible Answers:

Question_8_correct

Question_8_incorrect_3

Question_8_incorrect_2

Question_8_incorrect_1

Correct answer:

Question_8_correct

Explanation:

The first number in the ordered pair indicates how far left or right the point resides from the origin. The second number in the ordered pair indicates how far up or down the point resides from the origin. Numbers that are positve are located on the right side and above the origin while negative numbers are located to the left of or below the origin.This point is located 4 units to the right and 5 units below the origin.

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Example Question #2 : Graphing Lines

What is the slope of the line that contains the points

(8,12) and (9,-7)?

Possible Answers:

m=8

m=-19

$m=\frac{1}{2}$

m=-13

Correct answer:

m=-19

Explanation:

To find the slope of a line with two points you must properly plug the points into the slope equation for two points which is

$m=\frac{Y-y}{X-x}$

We must then properly assign the points to the equation as (X,Y) and (x,y) .

In this case we will make (9,-7) our and (8,12) our .

Plugging the points into the equation yields

$m=\frac{-7-12}{9-8}$

Perform the math to arrive at

$m=\frac{-19}{1}$

The answer is m=-19 .

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Example Question #3 : Graphing Lines

What is the slope of the line y=15x+13 ?

Possible Answers:

Correct answer:

Explanation:

In the standard form of a line y=mx+b the slope is represented by the variable .

In this case the line y=15x+13 has a slope of .

The answer is .

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Example Question #2 : Graphing Lines

The equation of a line is y=4x-7 .

What are the slope and the y-intercept?

Possible Answers:

Slope:

y-intercept: (0,-7)

Slope: $\frac{1}{4}$

y-intercept: (0,7)

Slope: $\frac{1}{4}$

y-intercept: (0,-7)

Slope:

y-intercept: (0,7)

Correct answer:

Slope:

y-intercept: (0,-7)

Explanation:

The equation of the line is written in slope-intercept form, y=mx+b , where is the slope and is the y-intercept. In this example, the y-intercept is a negative number.

y=4x-7

m=4

b=-7

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Example Question #1145 : High School Math

What is the slope of the line that contains the points (61,3) and (13,22) ?

Possible Answers:

m=-5

$m=-\frac{19}{48}$

$m=\frac{13}{22}$

m=15

Correct answer:

$m=-\frac{19}{48}$

Explanation:

To find the slope of a line with two points we must properly plug the points into the slope equation:

We must then assign the variables and .

In this case we will plug in (61,3) for and (13,22) for .

Plugging the points into the equation yields $m=\frac{3-13}{61-22}$ .

Perform the math to arrive at $m=\frac{-19}{48}$ .

The answer is $m=-\frac{19}{48}$ .

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High School Math : Pre-Algebra

Study concepts, example questions & explanations for High School Math

All High School Math Resources

Example Questions

Example Question #651 : Pre Algebra

Example Question #652 : Pre Algebra

Example Question #653 : Pre Algebra

Example Question #2 : Graphing Lines

Example Question #3 : Graphing Lines

Example Question #2 : Graphing Lines

Example Question #1145 : High School Math

All High School Math Resources

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