Answer:
Step-by-step explanation:
we have
----> equation A
---> equation B
substitute equation B in equation A
----> equation C
we have
substitute in the equation C
solve for W
What is the amount of sales tax owed on a $35 jacket if the 5ax rate us 6%
1 answer:
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Answer:
An equation in the slope-intercept form will be:
- y = 15x+210
Step-by-step explanation:
We know The slope-intercept form of the line equation
where
- m is the rate of change or slope
- b is the y-intercept
Let x represent the time in months
Let y represent the amount of money remaining in the account.
Given that every month Monica withdraws $15 from this account for her contact lenses
Thus, the rate of change or slope = m = 15
Given that after 3 months she has $255 left in her account.
So, we take the point (3, 255)
substituting m = 15, x = 3 and y = 255 in the slope-intercept form to determine the y-intercept
y = mx+b
255 = 15(3) + b
switch sides
15(3) + b = 255
45 + b = 255
b = 255 - 45
b = 210
Now, substituting m = 15 and b = 210 in the slope-intercept form of the line equation
y = mx+b
y = 15x+210
Therefore, an equation in the slope-intercept form will be:
- y = 15x+210
9514 1404 393
Answer:
(c) output increases, then decreases ...
Step-by-step explanation:
The given function is quadratic, so it has a turning point. Neither linear nor exponential functions have a turning point, so are always increasing or decreasing.*
The second attachment shows a plot of the function with input on the x-axis and output (area of the rectangle) on the y-axis.
_____
* A linear function that is a horizontal line will be neither increasing nor decreasing.
