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

The range of a relation is the domain of the inverse
of the relation. The statement is false.
Study Guide and Review - Chapter 4
false, domain
State whether each sentence is true or false . If
Write an equation of a line in slope-intercept
form with the given slope and y-intercept. Then
false , replace the underlined term to make a
graph the equation.
true sentence.
10. slope: 3, y-intercept: 5
2. The process of using a linear equation to make
predictions about values that are beyond the range of
SOLUTION:
the data is called linear regression.
The slope-intercept form of a line is y = mx + b,
SOLUTION:
where m is the slope, and b is the y-intercept.
The statement is false. The process of using a linear

equation to make predictions about values that are
beyond the range of the data is called linear
extrapolation. Linear regression is an algorithm to

find a precise line of fit for a set of data.
To graph the equation, plot the y-intercept (0, 5).
Then move down 3 units and left 1 unit. Plot the
point. Draw a line through the two points.
false, linear extrapolation
4. The correlation coefficient describes whether the
correlation between the variables is positive or
negative and how closely the regression equation is
modeling the data.
SOLUTION:
The correlation coefficient describes whether the
correlation between the variables is positive or
negative and how closely the equation is modeling the
data. So, the statement is true.
true
y = 3x + 5
6. Lines that intersect at acute angles are called
perpendicular lines.
SOLUTION:
The statement is false. Lines that intersect at right
angles are called perpendicular lines. Acute angles
have measures less than 90.
false, right

8. The range of a relation is the range of its inverse
function.
12. slope:
, y-intercept: 3
SOLUTION:
The range of a relation is the domain of the inverse
SOLUTION:
of the relation. The statement is false.
The slope-intercept form of a line is y = mx + b,
is the y -intercept.
where m is the slope, and b
false, domain

Write an equation of a line in slope-intercept
form with the given slope and y-intercept. Then
graph the equation.
Page 1
10. slope: 3, y-intercept: 5

To graph the equation, plot the y-intercept (0, 3).
SOLUTION: