Isaac and Sakura are both doing a science experiment where they are measuring the temperature of a liquid over time. Graphs that represent each of their data are shown below.
A graph titled Isaac's Experiment has time (minutes) on the x-axis and Temperature (degrees Fahrenheit) on the y-axis. A line goes through points (0, 80) and (2, 70).
A graph titled Sakura's Experiment has time (minutes) on the x-axis and Temperature (degrees Fahrenheit) on the y-axis. A line goes through points (0, negative 80) and (8, 0).
Which statement is correct?
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is positive.
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is negative.
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is positive.
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is negative.
43 answers
6 x + 4 y = 420
4 x + 6 y = 420
4 x + 6 y = 840
6 x + 4 y = 840
On a coordinate plane, a line goes through points (0, 3) and (4, 0).
On a coordinate plane, a line goes through points (negative 4, 0) and (0, negative 3).
On a coordinate plane, a line goes through points (0, negative 3) and (4, 0).
On a coordinate plane, a line goes through points (negative 4, 0) and (0, 3).
2x + 15y = 2,960
12x + 5y = 2,960
15x + 2y = 2,960
17x + 15y = 2,960
On a coordinate plane, a line goes through points (0, negative 1) and (2, 2).
On a coordinate plane, a line goes through points (negative 3, 1) and (0, negative 1).
On a coordinate plane, a line goes through points (0, negative 1) and (3, 1).
On a coordinate plane, a line goes through points (negative 2, 2) and (0, negative 1).
On a coordinate plane, a line goes through points V (negative 4, 4), W (0, 2), Y (2, 1), Z (4, 0).
V
W
Y
Z
On a coordinate plane, a line goes through points (0, 10) and (20, 0).
On a coordinate plane, a line goes through points (0, 20) and (10, 0).
On a coordinate plane, a line goes through points (negative 10, 0) and (0, 20).
On a coordinate plane, a line goes through points (negative 20, 0) and (0, 10).
y = x + 4
y = 3x + 4
y = 2x + 3
y = 2x + 5
On a coordinate plane, a line goes through points (0, negative 6) and (3, 0).
To find the y-intercept, begin at the origin and move horizontally to the graphed line. To find the slope, use two ordered pairs on the line and substitute into the equation m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction.
To find the y-intercept, begin at the origin and move horizontally to the graphed line. To find the slope, use two ordered pairs on the line and substitute into the equation m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction.
To find the y-intercept, begin at the origin and move vertically to the graphed line. To find the slope, use two ordered pairs on the line and substitute into the equation m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction.
To find the y-intercept, begin at the origin and move vertically to the graphed line. To find the slope, use two ordered pairs on the line and substitute into the equation m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction
x
y
8
–8
8
–4
8
0
8
4
8
8
The slope is positive.
The slope is negative.
The slope is zero.
There is no slope.
On a coordinate plane, a line goes through points (0, negative 4) and (2, 0).
StartFraction negative 4 minus 0 Over 2 minus 0 EndFraction
StartFraction negative 4 minus 0 Over 0 minus 2 EndFraction
StartFraction 0 minus 2 Over negative 4 minus 0 EndFraction
StartFraction 2 minus 0 Over negative 4 minus 0 EndFraction
8 x + 10 y = 1,660
10 x + 8 y = 1,660
8 x + 10 y = 830
10 x + 8 y = 830
x
y
6
2
9
8
What is the slope of the function?
One-fourth
One-half
2
4
A 2-column table with 3 rows titled Restaurant A. Column 1 is labeled x with entries 10, 20, 30. Column 2 is labeled y with entries 1, 2, 3.
A 2-column table with 3 rows titled Restaurant B. Column 1 is labeled x with entries 25, 50, 75. Column 2 is labeled y with entries 5, 10, 15.
Which compares the slopes of the lines created by the tables?
The slope of the line for Restaurant B is One-fifth times greater than the slope of the line for Restaurant A.
The slope of the line for Restaurant B is 2 times greater than the slope of the line for Restaurant A.
The slope of the line for Restaurant B is 5 times greater than the slope of the line for Restaurant A.
The slope of the line for Restaurant B is 10 times greater than the slope of the line for Restaurant A.
The slope of the line for Restaurant B is 2 times greater than the slope of the line for Restaurant A.
Salaries
A graph has items sold on the x-axis and weekly salary on the y-axis. A line for Dreya goes through points (0, 500) and (4, 600). A line for Marsha goes through points (0, 250) and (3, 400).
Which statement best explains who earns the most money per item sold?
Dreya earns the most money per item sold because her line increases at a faster rate than Marsha’s.
Marsha earns the most money per item sold because her line increases at a faster rate than Dreya’s.
Dreya earns the most money per item sold because her line begins at a higher point than Marsha’s.
Marsha earns the most money per item sold because her line begins at a higher point than Dreya’s.
Mark this and return
x
y
?
0
3
5
15
30
When x = 2, 6x + 2y = 30 becomes:
6(2) + 2y = 30
12 + 2y = 30
2y = 18
y = 9
Therefore, the table becomes:
x | y
--|--
0 | 15
3 | 6
5 | 0
15| -30
2 | 9
When x = 4, 6x + 2y = 30 becomes:
6(4) + 2y = 30
24 + 2y = 30
2y = 6
y = 3
Therefore, the table becomes:
x | y
--|--
0 | 15
3 | 6
4 | -2
5 | 0
15| -30
When x = 4, we have:
6x + 2y = 30
6(4) + 2y = 30
24 + 2y = 30
2y = 6
y = 3
Therefore, the table becomes:
x | y
--|--
0 | 15
3 | 6
4 | -5
5 | 0
15| -30
I hope this helps.
A)3
B)5
C)15
D)30
When x = 0, we have:
6x + 2y = 30
6(0) + 2y = 30
2y = 30
y = 15
Therefore, the table becomes:
x | y
--|--
0 | 15
3 | 6
5 | 0
15| -30
I hope this clears up any confusion.
A graph titled Samantha's Allowance has chores not completed on the x-axis and amount earned on the y-axis. A line goes through points (0, 10) and (1, 9).
A graph titled Samantha's Allowance has chores not completed on the x-axis and amount earned on the y-axis. A line goes through points (0, 10) and (2, 12).
A graph titled Samantha's Allowance has chores not completed on the x-axis and amount earned on the y-axis. A line goes through points (1, 6) and (1.5, 16).
A graph titled Samantha's Allowance has chores not completed on the x-axis and amount earned on the y-axis. A line goes through points (0, 10) and (1, 0).