A line passes through (4, 5) and (8, 9). Which equation best represents the line?
2 answers:
From the question, we know that
(x₁,y₁) = (4,5)
(x₂,y₂) = (8,9)
Find the slope of the line with the formula of slope
m =
Input the numbers
m =
m = 4/4
m = 1
The slope of the line is 1
Using this formula, determine the line equation
y - y₁ = m(x - x₁)
Input the numbers
y - 5 = 1(x - 4)
y - 5 = x - 4
y = x - 4 + 5
y = x + 1
The correct answer is first option
(x₁,y₁) = (4,5)
(x₂,y₂) = (8,9)
Find the slope of the line with the formula of slope
m =
Input the numbers
m =
m = 4/4
m = 1
The slope of the line is 1
Using this formula, determine the line equation
y - y₁ = m(x - x₁)
Input the numbers
y - 5 = 1(x - 4)
y - 5 = x - 4
y = x - 4 + 5
y = x + 1
The correct answer is first option
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Answer:
A) allows the population effect on log earnings of being married to depend on gender
Step-by-step explanation:
The regression equation of a dependent variable based on two or more independent variables is of the form:
Here,
<em>Y</em> = dependent variable
and
= independent variables
= interaction term
= regression coefficients.
If there is a significant interaction effect present then this implies that the effect of one independent variable ( or
) on the dependent variable (<em>Y</em>) differs every time with different value of the other independent variable (
or
) .
The provided regression equation is:
= dependent variable
and
= independent variables
In this case the interaction term is defined as follows:
The effect of being married on log earnings is dependent on different values of the variables , i.e. the gender of the
person.
Thus, the correct option is (A).