HSPT Math : Algebra

Study concepts, example questions & explanations for HSPT Math

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Example Questions

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Example Question #571 : Algebra

Axes 4

Refer to the above diagram. Which line is parallel to the line of the equation  ?

Possible Answers:

Correct answer:

Explanation:

Rewrite the equation of the parallel line in slope-intercept form  as follows:

The slope of the line is the coefficient of , which is . The slope of a line parallel to this is also 

The slope of a line is its ratio of rise to run. The slopes of the four lines in the diagram are given below, with their justification shown.

 

Axes 4

Of the four lines, the line marked  also has slope .

Example Question #571 : Algebra

Solve for 

Possible Answers:

Correct answer:

Explanation:

To get  by itself, you must first get rid of the constant.  

To undo the positive , you must subtract it from both sides leaving us with, 

.  

Then you must multiple both sides by  and that means,

.

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