Which is a step in constructing a scatter plot? Connect the points.
Draw a line.
Write an equation.
Graph data points on coordinate plane.

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dion27

10.04.2021

Mathematics

the demand and supply are in equilibrium when the amount demanded is exactly the same amount as the amount supplied, or namely when demand = supply.

$\bf \stackrel{equilibrium}{\stackrel{supply}{-0.1x^2-x+50}~~=~~\stackrel{demand}{0.1x^2+2x+30}}\qquad \implies 0=0.2x^2+3x-20\\\\\\\stackrel{\textit{multiplying both sides by 10}}{0=2x^2+30x-200}\implies \stackrel{\textit{dividing both sides by 2}}{0=x^2+15x-100}\\\\\\0=(x+20)(x-5)\implies \begin{array}{|c|ll}\cline{1-1}x\\\cline{1-1}\\-20\qquad \blacktriangleright 5 \blacktriangleleft\\\\\cline{1-1}\end{array}$

we can't use -20, because the amount cannot be a negative value.

The weekly demand and supply functions for sportsman 5 × 7 tents are given by p = −0.1x2 − x + 50 p

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Which is a step in constructing a scatter plot? Connect the points. Draw a line. Write an equation. Graph data points on coordinate plane.