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plumagirl
17.01.2020 •
Mathematics
The equation of line ab is y = 2x + 4. what is the equation of a line parallel to line ab in slope-intercept form that contains the point (3,-2)?
oy = 2x - 4
oy=-*
oy = 2x - 8
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Ответ:
Step-by-step explanation:
eq. of line parallel to AB is y=2x+a
if it passes through (3,-2) then
-2=2×3+a
a=-2-6=-8
y=2x-8
Ответ:
y = 2x - 8
Step-by-step explanation:
The equation of a straight line can be represented in the slope intercept form as
y = mx + c
Where
m = slope = (change in the value of y in the y axis) / (change in the value of x in the x axis)
The equation of the given line, AB is
y = 2x + 4
Comparing with the slope intercept form, slope = 2
If two lines are parallel, it means that they have the same slope. Therefore, the slope of the line passing through (3, -2) is 2
To determine the intercept, we would substitute m = 2, x = 3 and y = -2 into y = mx + c. It becomes
- 2 = 2×3 + c = 6 + c
c = - 2 - 6 = - 8
The equation becomes
y = 2x - 8
Ответ:
The answer is, none because they are both different substances.