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Serhud [2]
2 years ago
10

Write an equation in standard form of a quadratic function that has x-intercepts -2 and 5 and k=-4

Mathematics
1 answer:
bulgar [2K]2 years ago
8 0

Answer:

-2x + 5 = -4k

Step-by-step explanation:

You might be interested in
When solving the system of equations by graphing, what is the solution of 3x + 2y = 2 and 2x – y=6?
oksian1 [2.3K]

Answer:

answer B: (2,-2)

Step-by-step explanation:

First, write the equations on top of each other:

3x+2y=2\\2x-y=6

Then, multiply the the second equation by 2 so that we can use elimination of the y-variable:

3x+2y=2\\2(2x-y)=2(6)\\\\3x+2y=2\\4x-2y=12

Next, use elimination to find the value of "x":

3x+2y=2\\+(4x-2y=12)\\\\7x+0=14\\7x=14\\\frac{7x}{7}=\frac{14}{7}\\x=2

So, your x-value is 2.

Now, substitute your x-value into one of your equations, let's take the second equation, 2x-y=6:

2x-y=6\\2(2)-y=6\\4-y=6\\4-4-y=6-4\\-y=2\\\frac{-y}{1}=\frac{2}{-1}\\y=-2

Your y-value is -2.

With all your information gathered, you find that the solution to this system of equation is (2,-2).

5 0
3 years ago
Which of the following graphs would you use if you wanted viewers to see individual data points?
Arturiano [62]
I would either use a histogram or a frequency chart, but histogram is easier and neater 
7 0
2 years ago
Ñ
Rainbow [258]

Answer:

20x+21y+14

Step-by-step explanation:

Combine like terms:

150x-80y+50-50x-25y+20=

100x-80y+50-25y+20=

100x-105y+50+20=

100x-105y+70

100x-105y+70 can be divided by 5 and get 20x+21y+14.

7 0
3 years ago
Pleaseeee help asap i don’t wanna go to summer school!!
Levart [38]
The answer to your question is option a

Mean means the average so you plus all the scores and divide that by the number of scores and when to undo that, the answer you get is a



3 0
2 years ago
Simone raced 280 km from Perry to Medford and then idled back. If the round trip took 7 hours, what was Simone's average speed i
Gwar [14]

Answer:

80 KPH

Step-by-step explanation:

The total trip was 280*2 (the trip to perry and then to come back home)

divide this by the 7 hours it took him, and you get your answer. Enjoy!

6 0
2 years ago
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