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Q6.
Expert-verifiedState whether the given sentence is true or false. If false, replace the underlined term to make a true sentence.
The expression ${b}^{2}-4ac$ is called the discriminant.
The sentence, “The expression ${b}^{2}-4ac$ is called the discriminant. ” is true.
A mathematical expression is a combination of numbers and variables ordered with mathematical operations.
A quadratic equation, which is written in the form, $a{x}^{2}+bx+c=0$, where, $a\ne 0$ is called the standard form of the quadratic equation.
For the quadratic equation $y=a{x}^{2}+bx+c$,
The quadratic formula is given by
$x=\frac{-b\pm \sqrt{{b}^{2}-4ac}}{2a}$
In this formula, the expression under the radical sign, ${b}^{2}-4ac$, is called the discriminant.
Therefore, the sentence, “The expression ${b}^{2}-4ac$ is called the discriminant. ” is true.
Read each question. Then fill in the correct answer on the answer document provided by your teacher or on a sheet of paper.
Jason is playing games at a family fun center. So far he has won 38 prize tickets. How many more tickets would he need to win to place him in the gold prize category?
Number of Tickets | Prize Category |
$1-20$ | bronze |
$21-40$ | silver |
$41-60$ | gold |
$61-80$ | platinum |
F $2\le t\le 22$
G $3\le t\le 22$
H $1\le t\le 20$
J $3\le t\le 20$
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