Which statement about the following equation is true?
2x^2 – 9x + 2 = –1

a.) the discriminant is less than 0, so there are two real roots.
b.) the discriminant is less than 0, so there are two complex roots.
c.) the discriminant is greater than 0, so there are two real roots.
d.) the discriminant is greater than 0, so there are two complex roots.

Option C is correct that is the discriminant is greater than 0, so there are two real roots.

Step-by-step explanation:

We have been given the quadratic equation:

We will rearrange the like terms and so the equation will become:

We will solve the above quadratic equation by discriminant rule

Where,

We will compare the equation with general quadratic equation

Here, a=2,b= -9 and c=3 on substituting the values we get:

Therefore, Option C is correct that is the discriminant is greater than 0, so there are two real roots.

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step-by-step explanation:

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d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.