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Chapter 9: Q. 292 (page 946)
How can you use the discriminant when you are graphing a quadratic function?
We can use discriminant as
if , then graph will not intersect the -axis.
if , then graph will touch the -axis at one point.
if, then graph will intersects the-axis at two points.
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Nautical flags are used to represent letters of the alphabet. The flag for the letter, O consists of a yellow right triangle and a red right triangle which are sewn together along their hypotenuse to form a square. The hypotenuse of the two triangles is three inches longer than a side of the flag. Find the length of the side of the flag.
In the following exercises, solve.
In the following exercises, solve by using the Quadratic Formula:
A rectangular garden will be divided into two plots by fencing it on the diagonal. The diagonal distance from one corner of the garden to the opposite corner is five yards longer than the width of the garden. The length of the garden is three times the width. Find the length of the diagonal of the garden.
Solve quadratic equationusing square root property
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