Which is the slope of a line that is perpendicular to the line represented by the equation x-y = 8
2 answers:
Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Rearrange x - y = 8 into this form by subtracting x from both sides
- y = - x + 8 ( multiply through by - 1 )
y = x - 8 ← in slope- intercept form
with slope m = 1
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= - 1 → D
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Answer:
volume of cube=441cm³
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l=
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Answer: 120 ft
<u>Step-by-step explanation:</u>
The Ellipse equation is: where
- (h, k) is the center
- "a" is the horizontal radius
- "b" is the vertical radius
- c is the distance from the center to the foci: |a² - b²| = c²
Given: horizontal diameter = 122 → horizontal radius = 61 = a
vertical diameter = 22 → vertical radius = 11 = b
Foci (c): 61² - 11² = c²
3721 - 121 = c²
3600 = c²
±60 = c
Let (h, k) = (0, 0)
Then the foci are located at -60 and +60.
The distance between them is 60 + 60 = 120