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Gnom [1K]
2 years ago
9

Which ordered pair is a solution of the equation? y=-2x-5y

Mathematics
2 answers:
Otrada [13]2 years ago
7 0
-2.9 hope this helps !
Allushta [10]2 years ago
5 0

Answer:

if y = 5 than 2x - 5 = 5 we can simplify this too 2x = 10 ( by adding the 5 to both sides ) now we can simplify and get x = 5 ( by dividing by 2 ) so we get (5,5) as our first point. well since its in slope intercept form ( y = mx + b ) we can graph it.

Step-by-step explanation:

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“what is the equation of a conic with vertices (-9,3) and (7,3) and foci (-5,3) and (3,3)”
iragen [17]

This is an ellipse.

Equation of an ellipse: \frac{x^2}{a^2}+\frac{y^2}{b^2}=1

Let's find the center point first. We can do this by finding out the midpoint between the vertices or the foci.

(-9+7)/2=-1

Center: (-1,3)

Now we need to find a and b (length along x and length along y).

We know "a". It is the distance between the center and the right or left bound.

a=7-(-1)=8

To find out "b", first see that...

b^2=a^2-(distance from center to foci)^2

foci distance=3-(-1)=4

b^2=8^2-4^2

b^2=64-16

b^2=48

b=4√3

answer: \frac{(x+1)^2}{64}+\frac{(y-3)^2}{48}=1

7 0
3 years ago
Determine whether the function is linear or quadratic. Identify the quadratic, linear, and constant terms. y=(x-1)(4x+2)-4x^2
myrzilka [38]
Linear.  The 4x^2 will cancel out
4 0
3 years ago
A line with slope
spayn [35]

Answer:

(0, 8/3) = y-intercept

Step-by-step explanation:

I chose to find the y-intercept since it is easy to find with the given information.

The equation for a line is y = mx + b

To find the y-intercept, we must plug in the info we have and solve for b:

4 = -1/3 (-4) + b

4 = -4/3 + b

8/3 = b

To find a point on the line, you also could have added -1 to 4 and 3 to -4 since slope means rise/run or change in y/change in x:

(y - 1) / (x + 3) = (4 - 1) / (-4 + 3) = (3, -1) (flip since it's the y and x coordinate) = (-1, 3)

6 0
2 years ago
SOMEONE CAN HELP ME, I NEED THIS NOW THANK U
saveliy_v [14]

Answer:where's the pic

Step-by-step explanation:

5 0
2 years ago
3 1/2 × 1 1/2 × 2 =​
andrey2020 [161]

Answer:

38.5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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