Here's a question from Ch-7 , Ex-14.3
2 answers:
<em>Graph</em><em> </em><em>is</em><em> </em><em>attached</em><em>!</em><em>~</em>
<em>The</em><em> </em><em>solution</em><em> </em><em>on</em><em> </em><em>paper</em><em> </em><em>is</em><em> </em><em>also</em><em> </em><em>attached</em><em> </em><em>with</em><em> </em><em>it</em><em>.</em><em>.</em>
The equation that represents the work done as a function of the distance is
Represent the work done with w, and the distance travelled with d.
So, the proportional equation is:
Where:
F represents the proportional constant (Force)
Given that, the force is 5;
The equation becomes
Hence, the equation that represents the work done as a function of the distance is
See attachment for the graph of the function
Read more about variation at:
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Answer:
Step-by-step explanation:
Given:
Focus point = (-5, -4)
Vertex point = (-5, -3)
We need to find the equation for the parabola.
Solution:
Since the x-coordinates of the vertex and focus are the same,
so this is a regular vertical parabola, where the x part is squared. Since the vertex is above the focus, this is a right-side down parabola and p is negative.
The vertex of this parabola is at (h, k) and the focus is at (h, k + p). So, directrix is y = k - p.
Substitute y = -4 and k = -3.
So the standard form of the parabola is written as.
Substitute vertex (h, k) = (-5, -3) and p = -1 in the above standard form of the parabola.
So the standard form of the parabola is written as.
Therefore, equation for the parabola with focus at (-5,-4) and vertex at (-5,-3)