1. Look at the graph
{Can't show graph but coordinates are (-1,-2) and (2,1)}
The slope of the line is ______.
A. Positive **
B. negative
C. zero
D. undefined
2. Find the slope of the line.
{coordinates (1,-2) and (3,2)}
A. -2
B. 2 **
C. -1/2
D. 1/2
3. Find the slope of the line
{Coordinates (2,1) and (1,4)}
A. -3
B. 3 **
C. -1/3
D. 1/3
4. What is the slope of the line that goes through (6,5) and (3,1)?
A. 3/4
B. -3/4
C. 4/3 **
D. -4/3
5. The slope of the line that goes through (-3, -5) and (-3, -6) is ______.
A. positive
B. negative
C. zero
D. undefined **
@help is wrong on question 3.
The answers are:
A
B
A
C
D
everything correct except 3 ty
check the sign on #3
To find the slope of a line, you can use the formula:
slope = (change in y-coordinates) / (change in x-coordinates)
Let's apply this formula to each question:
1. The coordinates given are (-1, -2) and (2, 1). Using the formula, the change in y-coordinates is 1 - (-2) = 3, and the change in x-coordinates is 2 - (-1) = 3. Therefore, the slope is 3/3 = 1. Since the slope is positive, the correct answer is A. Positive.
2. The coordinates given are (1, -2) and (3, 2). Applying the formula, the change in y-coordinates is 2 - (-2) = 4, and the change in x-coordinates is 3 - 1 = 2. Therefore, the slope is 4/2 = 2. The correct answer is B. 2.
3. The coordinates given are (2, 1) and (1, 4). Using the formula, the change in y-coordinates is 4 - 1 = 3, and the change in x-coordinates is 1 - 2 = -1. Therefore, the slope is 3/-1 = -3. The correct answer is B. -3.
4. The coordinates given are (6, 5) and (3, 1). Applying the formula, the change in y-coordinates is 1 - 5 = -4, and the change in x-coordinates is 3 - 6 = -3. Therefore, the slope is -4/-3 = 4/3. The correct answer is C. 4/3.
5. The coordinates given are (-3, -5) and (-3, -6). Using the formula, the change in y-coordinates is -6 - (-5) = -6 + 5 = -1, and the change in x-coordinates is -3 - (-3) = -3 + 3 = 0. Since the change in x-coordinates is 0, the slope is undefined. The correct answer is D. undefined.