A room service waitress at a hotel receives an automatic gratuity of 15% of the food bill. If the food bill is $19.00, how much
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The point-slope form:
m - slope
(x₁, y₁) - the point
The formula of a slope:
We have the points (5, 4) and (2, -2). Substitute:
- <em>point-slope form</em>
<em>add 4 to both sides</em>
- <em>slope-intercept form</em>
<em>subtract 2x from both sides</em>
<em>change the signs</em>
- <em>standard form</em>
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From the table we have two points (1, 3) and (2, 7). SubstituteL
- <em>point-slope form</em>
<em>add 3 to both sides</em>
- <em>slope-intercept form</em>
<em>subtract 4x from both sides</em>
<em>change the signs</em>
- <em>standard form</em>