Mathematics
Grade-8
Easy
Question
Find the slope of the line that passes through the points (2, 4) and (6, 12)
- 2
- -2
Hint:
Slope of the line (m) = y2 - y1 / x2 - x1
The correct answer is: 2
A linear function is of the form f(x) = mx + b where 'm' and 'b' are real numbers. A linear function represents a line, i.e., its graph is a line. Here,
- 'm' is the slope of the line
- 'b' is the y-intercept of the line
- 'x' is the independent variable
- 'y' (or f(x)) is the dependent variable
To find slope of the line (m) = 
(x1,y1) = (2,4) and (x2, y2) = (6,12)
Related Questions to study
Mathematics
What does "m" represent in y = m x + b?
What does "m" represent in y = m x + b?
MathematicsGrade-8
Mathematics
A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. Calculate the average rate of change.
A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. Calculate the average rate of change.
MathematicsGrade-8
Mathematics
Find which of the following are ways to find the rate of change.
Find which of the following are ways to find the rate of change.
MathematicsGrade-8
Mathematics
If a carpenter earned $1000, what is the best estimate for how many days he worked?
If a carpenter earned $1000, what is the best estimate for how many days he worked?
MathematicsGrade-8
Mathematics
Which of the following would be a reasonable approximation for the length of time it would take this person to run 6 miles?
Which of the following would be a reasonable approximation for the length of time it would take this person to run 6 miles?
MathematicsGrade-8
Mathematics
Write the equation for the line.
Write the equation for the line.
MathematicsGrade-8
Mathematics
As the age of the car increases, its value decreases. Determine the scatter plot that represents this relationship.
As the age of the car increases, its value decreases. Determine the scatter plot that represents this relationship.
MathematicsGrade-8
Mathematics
If the slope is - 
, what does that mean?
Use the given line of best fit to approximate the rate of change relative to the scatter plot above.
If the slope is - , what does that mean?
Use the given line of best fit to approximate the rate of change relative to the scatter plot above.
MathematicsGrade-8
Mathematics
Find the number of trees that are 3 years old.
Find the number of trees that are 3 years old.
MathematicsGrade-8
Mathematics
Using the linear model, y = 10 x + 10 predict the temperature in Hayward in July ( x = 7).
Using the linear model, y = 10 x + 10 predict the temperature in Hayward in July ( x = 7).
MathematicsGrade-8
Mathematics
Determine the slope and y-intercept from the following equation: y = 
x + 3
Determine the slope and y-intercept from the following equation: y = x + 3
MathematicsGrade-8
Mathematics
Using the linear model, y=1500x+900 predict how much the elevator will weigh if there were 6 people on it.
Using the linear model, y=1500x+900 predict how much the elevator will weigh if there were 6 people on it.
MathematicsGrade-8
Mathematics
If the debate team plans to practice for 6 hours, how many debates should they win?
If the debate team plans to practice for 6 hours, how many debates should they win?
MathematicsGrade-8
Mathematics
Write the equation with a slope of 
and a y-intercept of -3.
Write the equation with a slope of and a y-intercept of -3.
MathematicsGrade-8
Mathematics
Calculate the age of the tree that is 8 feet tall.
Calculate the age of the tree that is 8 feet tall.
MathematicsGrade-8
