# 522x

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## 522x

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Laser printer toner cartridge Canon i-Sensys MF 522x blackCanon CRG041 laser toner cartridgeThis compatible drum unit is an alternative to original product Canon CRG-041.

Yield of compatible laser toner is defined at 5% coverage - similarly as for OEM products.

The print quality is compared with the original toners.

Canon i-Sensys MF 522x black toner cartridge

4.1 Find the Vertex of y = -9x2+522x-2500Parabolas have a highest or a lowest point called the Vertex . Our parabola opens down and accordingly has a highest point (AKA absolute maximum) . We know this even before plotting "y" because the coefficient of the first term, -9 , is negative (smaller than zero). Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions. Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex. For any parabola,Ax2+Bx+C,the x -coordinate of the vertex is given by -B/(2A) . In our case the x coordinate is 29.0000 Plugging into the parabola formula 29.0000 for x we can calculate the y -coordinate : y = -9.0 * 29.00 * 29.00 + 522.0 * 29.00 - 2500.0 or y = 5069.000 041b061a72