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Rama09 [41]
3 years ago
11

A parabola opens to the left. Which could be the equation of the parabola?

Mathematics
2 answers:
kiruha [24]3 years ago
5 0
Will help you with  all of those
Rus_ich [418]3 years ago
3 0

Answer:

(y - 4)^2 = -4(x + 3)

Step-by-step explanation:

When parabola opens the left then it is a horizontal parabola

Vertex form of horizontal parabola is

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

where (h,k) is the vertex

When the parabola opens to the right then 4p is positive

when parabola opens to the left then 4p is negative

Now we look at the given equation and check with vertex form of parabola

(y - 4)^2 = -4(x + 3)

Here the value of 4p is negative , so parabola opens left

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VikaD [51]

Answer:

You multiply both of the numbers, and then the answer is your product

Step-by-step explanation:

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3 years ago
a plumber is paid $38.00 per hour for an eight-hour shift. for any hours over eight in a day, an overtime rate of one and one-ha
xxMikexx [17]
Hey You!

38.00 × 1.5 = 57

57 × 10 = 570

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7 0
4 years ago
What is the rule for the given sequence? 3, 8, 23, 68, 203,
EleoNora [17]

Answer: Add the number previously added multiplied by 3;

+3x, where x is the number that was added previously

Step-by-step explanation:

3+5=8. That's the first equation, where 5 is x. Then the next equation, 8+3x=23. 8+15=23. It works for all of the equations, so that's the pattern.

4 0
3 years ago
Read 2 more answers
Find the equation of the line. Write the equation using function notation. Through (-3,-9); parellel to 5x+3y=8
mihalych1998 [28]

Answer:

The equation of a parallel line in point-slope form would be f(x) = -5/3x - 14

Step-by-step explanation:

To find this, we must first find the slope of the original line. We can do this by solving for y.

5x + 3y = 8

3y = -5x + 8

y = -5/3x + 8/3

Now that we have the slope of the original line, we can use the point and slope and put them into the base form of point-slope form. Then we solve for y to get the final result.

y - y1 = m(x - x1)

y + 9 = -5/3(x + 3)

y + 9 = -5/3x - 5

y = -5/3x - 14

Then to get the function notation, we need to replace the y with f(x).

f(x) = -5/3x - 14

3 0
3 years ago
Dont understand it, so yeah need some help​
Sonja [21]

Answer:

-4

Step-by-step explanation:

We have the coordinates (6, 3) and (8, 4), allowing us to calculate the slope (or gradient). To do this, you divide the change in y by the change in x, which is 1/2 which is a half.

The form of a linear equation is y = mx + c, where m is the gradient and c is the y-intercept.

We have the gradient, so we can put it in the equation:

y = x/2 + c

We can now substitute in a pair of our coordinates and rearrange to find the y-intercept.

3 = 6/2 + c

3 = 3 + c

c = 0

Therefore the equation for our line is y = x/2.

We can now put in the y coordinate we were given to work out the corresponding x coordinate:

-2 = x/2

x = -4

Therefore n is -4.

7 0
3 years ago
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