Answer:
C. Parabola
Step-by-step explanation:
A line parallel will cut only one cone (upper or lower cone, not both) making it a parabola
Answer:
<em>The line does not represent a direct variation because it does not go through the origin.</em>
Each pencil should be sold for 6
6*20 = 120 which is a 20 profit
The y-intercept is (0, -37/7).
Explanation:
When you have one point and the slope of a line you can find its equation by using the point-slope form of the linear function:
m = slope
point = (a, b)
point-slope equation: (y - b) = m (x - a).
Now substitute m = -1/7 and (a,b) = (5, - 6)
y - (-6) = -1/7 (x - 5)
Solve for y:
y + 6 = - 1/7 ( x - 5)
7y + 7(6) = - (x - 5)
7y + 42 = - x + 5
7y = - x + 5 - 42
7y = - x - 37
y = -(1/7)x - 37/7 ← this is the slope-intercept form of the equation.
The y-intercept is the point when x = 0. So, the corresponding y-coordinate is the constant term in the last equation:
y = 0 - 37/7 = - 37/7
And the y-intercept is the point (0, -37/7).