D)
Decide whether or not the ordered pair is a solution to the equation.
215)
5x + y =24; (4, 4)
215)
A)
No
B)
Yes
Graph the linear equation.
216)
2x – y = – 4
216)
A)
B)
C)
D)
D)
D)
Graph the linear equation. Give the x– and y–intercepts.
217)
y + 5x = 0
217)
A)
x–intercept: (0, 0); y–intercept: (0, 0)
B)
x–intercept: (0, 0); y–intercept: (0, 0)
C)
x–intercept: (0, 0); y–intercept: (0, 0)
D)
x–intercept: (0, 0); y–intercept: (0, 0)
113
D)
Find the slope of the line.
218)
x = – 10
218)
A)
0
B)
1
C)
Undefined
D)
–10
Solve by graphing. Label the axes and show where the solution is located on the graph.
219)
The cost, c, in dollars of car rental is 5+ 0.25m, where m is the number of miles driven.
Graph the equation and use the graph to estimate the cost of car rental if the number
of miles driven is 37.
219)
A)
About 10 dollars
B)
About 14 dollars
C)
About 38.25 dollars
D)
About 19 dollars
Graph the equation by using the slope and y–intercept.
220)
3x + 4y =20
220)
114
A)
B)
C)
D)
Answer:
A
A)
B)
C)
D)
Complete the ordered pair for the given equation.
221)
y = – x + 8 (3, )
221)
A)
(3, –5)
B)
(3, 3)
C)
(3, 5)
D)
(3, 15)
Answer the question.
222)
True or False: The graph of the equation y = – 9 is a horizontal line.
222)
A)
True
B)
False
Answer:
A
A)
B)
Answer:
C
Explanation:
A)
B)
C)
D)
The table of values gives two points that lie on a line. Use the points to find the slope and y–intercept of the line. Then
use these values to write an equation of the line in slope–intercept form.
223)
x y
8 3
–5–8
223)
A)
y = – 5
3x +1
3
B)
y = – 11
13 x –49
13
C)
y =11
13 x –49
13
D)
y =5
3x +1
3
Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
224)
3x – 8y = – 15
64x + 12y = – 15
224)
A)
Perpendicular
B)
Neither
C)
Parallel
B
Find the slope of the line going through the given pair of points.
225)
(–7, –4) and (–7, 3)
225)
A)
Undefined
B)
–1
7
C)
7
D)
– 7
A
C
Solve by graphing. Label the axes and show where the solution is located on the graph.
226)
The value, v, in hundreds of dollars, of Juan’s computer is approximated by v = – 0.50t +10, where t
is the number of years since he first bought the computer. Graph the equation and use the graph to
estimate the value of the computer 8 years after it was purchased.
226)
A)
$1400
B)
$200
C)
$600
D)
$840
Decide whether or not the ordered pair is a solution to the equation.
227)
y =2x; (2, 4)
227)
A)
No
B)
Yes
Solve the problem.
228)
A hill on a hiking trail goes up 60 feet over a distance of 130 feet. Find the grade of the hill.
228)
A)
130
B)
13
6
C)
6
13
D)
60
Answer Key
Testname: C3
118
Answer Key
Testname: C3
Answer Key
Testname: C3
Answer Key
Testname: C3
Answer Key
Testname: C3