Chapter 4 Study Guide And Review Math Worksheet With Answer Key - Cognero

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Study Guide and Review - Chapter 4
State whether each sentence is true or false . If false , replace the underlined term to make a true
sentence.
1. The y-intercept is the y-coordinate of the point where the graph crosses the y-axis.
SOLUTION:  
The y-intercept is the point where the graph crosses the y-axis. So, the statement is true.
ANSWER:  
true
3. An inverse relation is the set of ordered pairs obtained by exchanging the x-coordinates with the y-coordinates of
each ordered pair of a relation.
SOLUTION:  
This is the definition of an inverse function.
Therefore, the statement is true.
ANSWER:  
true
5. Lines in the same plane that do not intersect are called parallel lines.
SOLUTION:  
Lines in the same plane that do not intersect are called parallel lines. So, the statement is true.
ANSWER:  
true
7. A(n) constant function can generate ordered pairs for an inverse relation.
SOLUTION:  
A constant function has the same function value for every element of the domain. An inverse function can generate
ordered pairs for an inverse relation. So, the statement is false. Replace constant function with inverse function to 
make it a true statement.
ANSWER:  
false, inverse function
9. An equation of the form y = mx + b is in point-slope form.
SOLUTION:  
An equation in point slope form looks like y – y
= m(x − x
). An equation in slope intercept form looks like y = mx +
1
1
b. The statement is false.
ANSWER:  
false, slope-intercept form
Write an equation of a line in slope-intercept form with the given slope and y-intercept. Then graph the
equation.
11. slope:−2, y-intercept: −9
SOLUTION:  
is the y -intercept.
The slope-intercept form of a line is y = mx + b, where m is the slope, and b
 
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