identifying equation in point slope form for the line perpendicular to y equals negative 1 / 3x - 6 that passes through -1,5
1 answer:
Answer:
y = 3x +8
Step-by-step explanation:
The slope of the given line is -1/3. The slope of a perpendicular line is the opposite of the reciprocal of that: -1/(-1/3) = 3.
Then, in point-slope form, the equation of the line is ...
... y - k = m(x - h) . . . . . for slope m through point (h, k)
... y - 5 = 3(x -(-1)) . . . . . for line of slope 3 through (-1, 5)
... y = 3x +8 . . . . . . . . . simplify
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Answer:
y = 0.36x + 4200.00
15100.00 miles.
Step-by-step explanation:
If the yearly cost for driving x miles is given by y dollars then the two ordered pairs to find the linear relation between x and y are (10000,7800) and (20000,11400).
So, the equation will be
⇒
⇒
⇒
⇒
⇒ y = 0.36x + 4200.00 ........... (1) (Answer)
Now, for y = $9636.00, from equation (1),
9636 = 0.36x + 4200
⇒ 0.36x = 5436
⇒ x = 15100.00 miles. (Answer)