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professor190 [17]
3 years ago
15

Use the discriminant to determine the number of real solutions to the quadratic equation.

Mathematics
1 answer:
Naily [24]3 years ago
3 0

Answer:

0

Step-by-step explanation:

Use discramnt formula

b {}^{2}  - 4ac

Where 6 is a, 11 is b and 9 is c

11 {}^{2} - 4(6)(9)

121 - 216 =  - 95

Since the discramnt is negative, there are no real solutions and it will only produce imaginary solutions

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Brainliest!!!<br> Please help ASAP !
Semenov [28]

Answer:

Please see below :)

Step-by-step explanation:

y - 5 = -(x + 11) + 2

y - 5 = -x - 11 + 2

y = -x - 11 + 2 + 5

y = -x - 9 + 5

y = -x - 4

54x + 15 = -3(3y + 1)

54x + 15 = -9y - 3

54x + 15 + 3 = -9y

54x + 18 = -9y

-6x - 2 = y

y = -6x - 2

Please let me know if I've done anything wrong!

3 0
3 years ago
A line containing the points (4,4) and (8,9)
strojnjashka [21]

Answer:

im assuming slope : 5/4 is slope

Step-by-step explanation:

the formula (y₂ - y₁) / (x₂ - x₁) is how you get slope. plug stuff in and you get (9 - 4) / (8 - 4) and thats 5/4

3 0
3 years ago
Read 2 more answers
Where did we get one?
77julia77 [94]

Answer:

The -1 came from factoring.

The equation is multiplied by 8 because 8 could be pulled from 16x-8.

16 can be divided by 8 2 times and 8 can only divided by 8 once.

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5 0
2 years ago
parallelogram ABCD has vertices A(-2,-51/2), B(-4,-51/2), C(-3,-2), and D(-1,-2). find the vertices of parallelogram A'B'C'D' af
Volgvan
On a coordinate plane, any movement up and down is on the y-axis. So if your parallelogram is moving down 2.5 units, then the y-values of each vertice will go down by 2.5:
A(-2, -8), B(-4, -8), C(-3, -4.5), D(-1, -4.5)

7 0
3 years ago
What is the directrix of the parabola defined by `(1)/(4)(y + 3) = (x − 2)^2`?
Sauron [17]

The directrix of the parabola is y =  \frac {-49}{16}

<h3>How to determine the equation of the directrix?</h3>

The parabola equation is given as:

\frac 14(y + 3) = (x -2)^2

A parabola is represented as:

4p(y - k) =(x -h)^2

By comparing both equations, we have:

4p = 1/4 ==> p = 1/16

-k= 3 ==> k = -3

The directrix is represented as:

y = k - p

So, we have:

y = -3 - \frac 1{16}

Take the LCM

y =  \frac {-16 * 3- 1}{16}

Evaluate

y =  \frac {-49}{16}

Hence, the directrix of the parabola is y =  \frac {-49}{16}

Read more about parabola at:

brainly.com/question/1480401

#SPJ1

4 0
1 year ago
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