Question

# The slope is zero means

- horizontal line
- positive correlation
- negative correlation
- vertical line

## The correct answer is: horizontal line

### The slope is zero means a horizontal line..

When there is no change in dependent variable with change in independent variable the slope of line becomes zero and line is parallel to x axis

Correct option is (a).

when slop of any equation is zero it means there is no change in dependent variable with change in independent variable hence the graph becomes a horizontal line

### Related Questions to study

### Which association has slope -1?

### Which association has slope -1?

### Which association has slope 1?

### Which association has slope 1?

### Which figure gives perfect linear correlation?

### Which figure gives perfect linear correlation?

### When the value of the independent variable increases and the value of the dependent variable

Increases such type of correlation is

### When the value of the independent variable increases and the value of the dependent variable

Increases such type of correlation is

### When the value of the independent variable increases and the value of the dependent variable

decreases such type of correlation is

The correct option is (a).

Reason : Whenever there is decrease in dependent variable with increase in independent the graph is downward with negative slope

### When the value of the independent variable increases and the value of the dependent variable

decreases such type of correlation is

The correct option is (a).

Reason : Whenever there is decrease in dependent variable with increase in independent the graph is downward with negative slope

### The scatter plot shows David’s height at various ages. Choose the right answer that describe the type of association between David’s age and his height.

The corerect option is (c)

Reason :

As the height of David increases with increase in his age , the graph is going upward as both the variable are increasing so it is a case of positive association and since there is almost constant change in both the variable it is shows linear relationship also

### The scatter plot shows David’s height at various ages. Choose the right answer that describe the type of association between David’s age and his height.

The corerect option is (c)

Reason :

As the height of David increases with increase in his age , the graph is going upward as both the variable are increasing so it is a case of positive association and since there is almost constant change in both the variable it is shows linear relationship also