Answer:
The slope is -5/4 or -1.25
Step-by-step explanation:
m= (y2-y1)/(x2-x1)
m= (-4-6)/(9-1)
m=(-10)/8
m= -5/4
Answer: The answer is the second equation (y = 3x-4 and y = -1/3x - 2)
Step-by-step explanation:
This is because two lines are perpendicular when the slopes of the equations are negative reciprocals from each other.
Answer:
the slope of the regression equation for predicting our Exam 2 scores from Exam 1 scores is 0.492
And the y-intercept of the regression equation for predicting our Exam 2 scores from Exam 1 is 33.688
Step-by-step explanation:
Given the data in the question;
mean X" = 86
SD σx = 10
Y" = 76
SD σy = 8.2
r = 0.6
Here, Exam 2 is dependent and Exam 1 is independent.
The Regression equation is
y - Y" = r × σy/σx ( x - x" )
we substitute
y - 76 = 0.6 × 8.2/10 ( x - 86 )
y - 76 = 0.492( x - 86 )
y - 76 = 0.492x - 42.312
y = 0.492x - 42.312 + 76
y = 0.492x + 33.688
Hence, the slope of the regression equation for predicting our Exam 2 scores from Exam 1 scores is 0.492
And the y-intercept of the regression equation for predicting our Exam 2 scores from Exam 1 is 33.688
Answer:
5713 - 75
= 5638
Step-by-step explanation:
brainliest plz
When you write terms in denominator on numerator, sign of indices changes.
