Standard Form — Unit test Answers
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21
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Which statement is correct?
A
A horizontal line has no slope.B
A vertical line has a slope of zero.C
A line that rises from left to right has a positive slope.D
A line that falls from right to left has a negative slope.22
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The data in which table represents a linear function that has a slope of zero?
A
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1. Column 2 is labeled y with entries 5, 5, 5, 5, 5.
B
A 2-column table with 5 rows. Column 1 is labeled x with entries 1, 2, 3, 4, 5. Column 2 is labeled y with entries negative 5, negative 4, negative 3, negative 2, negative 1.
C
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1. Column 2 is labeled y with entries 5, 4, 3, 2, 1.
D
A 2-column table with 5 rows. Column 1 is labeled x with entries 5, 5, 5, 5, 5. Column 2 is labeled y with entries negative 5, negative 4, negative 3, negative 2, negative 1.
23
A line passes through the points (1, 4) and (3, –4). Which is the equation of the line?
A
y = negative 4 x + 8
B
y = –2x + 6C
y = negative one-fourth x + 2
D
y = 2x + 224
The table of values below represents a linear function and shows the amount of money in a tip jar at a dry cleaners since the dry cleaners opened for the day. How much was in the tip jar when the dry cleaners opened?Amount of Money in a Tip Jar at a Dry CleanersNumber of Hours Since Dry Cleaners Opened45678Amount of Money in Tip Jar ($)15.5018.2521.0023.7526.50
A
$1.75B
$2.75C
$4.50D
$7.2525
Which expression can be used to determine the slope of the linear function graphed below?
A
StartFraction negative 4 minus 0 Over 2 minus 0 EndFraction
B
StartFraction negative 4 minus 0 Over 0 minus 2 EndFraction
C
StartFraction 0 minus 2 Over negative 4 minus 0 EndFraction
D
StartFraction 2 minus 0 Over negative 4 minus 0 EndFraction
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