All categories

2 years ago

Find the equation line through point (-4,15) and (4,-5)

Mathematics

1 answer:

Oduvanchick [21]2 years ago

8 0

Answer highlighted in blue. Hope this helps.

You might be interested in

PLEASE HELP ASAP

maria [59]

Answer:

First option: $3x^2-5x=-8$

Second option: $2x^2=6x-5$

Fourth option: $-x^2-10x=34$

Step-by-step explanation:

Rewrite each equation in the form $ax^2+bx+c=0$ and then use the Discriminant formula for each equation. This is:

$D=b^2-4ac$

1) For $3x^2-5x=-8$ :

$3x^2-5x+8=0$

Then:

$D=(-5)^2-4(3)(8)=-71$

Since $D$ this equation has no real solutions, but has two complex solutions.

2) For $2x^2=6x-5$ :

$2x^2-6x+5=0$

Then:

$D=(-6)^2-4(2)(5)=-4$

Since $D$ this equation has no real solutions, but has two complex solutions.

3) For $12x=9x^2+4$ :

$9x^2-12x+4=0$

Then:

$D=(-12)^2-4(9)(4)=0$

Since $D=0$ this equation has one real solution.

4) For $-x^2-10x=34$ :

$-x^2-10x-34=0$

Then:

$D=(-10)^2-4(-1)(-34)=-36$

Since $D$ , this equation has no real solutions, but has two complex solutions.

3 0

3 years ago

Write a quadratic function in vertex form whose graph has the vertex (−5, −1) and passes through the point (−2, 2)

denis23 [38]

This is your perfect answer

3 0

3 years ago

A restaurant had 82.4 pounds of meat, then they ate 5.5 pounds of it, how much is left

zheka24 [161]

Answer:76.9 pounds

Step-by-step explanation: you subtract 5.5 pounds from the 82.4 pounds to get your answer

5 0

3 years ago

Read 2 more answers

I need need help on this

Crazy boy [7]

Answer:

points A, B and D are all in the same plane but not all are on the same line

Step-by-step explanation:

points A, C, D are all collinear which means they must also be coplanar

3 0

3 years ago

One-half of a number,<br> increased by 69 is 74.<br> What is the number?

Klio2033 [76]

Answer:

Step-by-step explanation:

let the number be n then half the number is $\frac{1}{2}$ n , so

$\frac{1}{2}$ n + 69 = 74 ( subtract 69 from both sides )

$\frac{1}{2}$ n = 5 ( multiply both sides by 2 to clear the fraction )

n = 10

Thus the number is 10

6 0

2 years ago

Read 2 more answers