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22.09.2019 •
Mathematics
1. what is the slope of the line in the graph shown below?
2. fine the slope that passes through (-2, -3) and (1, 1).
a. 1/3
b. 1
c. 2
d. 4/3
3. for the equation -4y=8x, what is the constant of variation?
a. -4
b. -2
c. 1
d. 2
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Ответ:
2. Answer is D. 4/3
3. Answer is either A or B
Ответ:
1). Slope of line = -2.
2). Option D is correct.i.e.,
3). Option B is correct.i.e., constant of variation is -2.
Step-by-step explanation:
1).
Given: A line and its two points in graph
To find: Slope of line in graph
Formula used to find Slope from two points is given by,
Points are ( 0 , 3 ) , ( 1 , 1 )
Therefore, Slope of line = -2.
2).
Given: Points ( -2 , -3 ) & ( 1 , 1 )
To find: Slope of line which passes through given points.
We again use formula of Slope from two points,
Therefore Option D is correct.i.e.,
3).
Given: equation , -4y = 8 x
To find: Constant of variation
The constant of variation is the relationship between variables that does not changes
Consider,
-4y = 8x
Transpose -4 to RHS
y = -2x
So, if we put any value of x we get value of y which is -2 times value of x.
⇒ Constant of variation is -2
Therefore, Option B is correct.i.e., constant of variation is -2.
Ответ:
I don’t know the answer I just need some points to ask more questions
Step-by-step explanation: