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BartSMP [9]
3 years ago
7

For the function y=-2x^2+4x+1, what are the coordinates of the vertex? Is it a maximum or minimum point? Hint: use the vertex/ax

is of symmetry formula for x. Show all work algebraically to earn full credit and use Desmos only to check your answer
Mathematics
1 answer:
masya89 [10]3 years ago
8 0

Step-by-step explanation:

y = -2x² + 4x + 1

Complete the square.

y = -2 (x² − 2x) + 1

y = -2 (x² − 2x + 1) + 1 − (-2)(1)

y = -2 (x − 1)² + 3

The vertex is (1, 3).  The leading coefficient is negative, so the vertex is a maximum.

Graph: desmos.com/calculator/qsih3rd8ev

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Carlos drives 2 times the hours that patricia does. carlos and patricia drive for a total of 9 hours. how long did each person d
suter [353]
Patricia drove for 3 hours. Carlos drove for twice that, 6 hours. 6+3=9
4 0
3 years ago
PLS HELP ASAP ILL GIVE BRAINLKEST THANKS
Julli [10]

Answer:

D. (6,3)

Step-by-step explanation:

To the find which point can be located on the line you will have to find the point-slope form

The formula for point-slope form is y=mx+b

m is slope

b is y-intercept

Since we already know the slope we can just replace it:

y=1/2x+b

Now we need to find the y-intercept

We can do this by distributing them with (4,2)

As you remember in point the digits are in x and y

(x,y) so we can tell that 4 is x and 2 is y

Now we can substitute x with 4 and y with 2

2=1/2(4)+b

Multiply 1/2 and 4

which is 2

2=2+b

Thus b=0

So the slope intercept form is y=1/2x

Now we can substitute the other points:

For (5,2):

2=5/2

Which is incorrect since 2 does not equal 5/2

For (2,3):

3=1/2(2)

Which is

3=1

Which is incorrect since 3 does not equal 1

For (3,4)

4=1/2(3)

Which is

4=3/2

Which is incorrect since 4 does not equal 3/2

For (6,3)

3=1/2(6)

Which is

3=3

Which is correct since 3 does equal to 3

Hope this helps!

8 0
2 years ago
12.) What is the value of x in the figure?
Maksim231197 [3]
What figure are we looking for?
3 0
3 years ago
The X and Ys are confusing
professor190 [17]

Answer: -15yx^2

Step-by-step explanation:

-12x^2 * y -3x^2 * y=

-12(x^2 * y)-3(x^2 * y)=

(-12-3)(x^2 * y)=

-15x^2 * y=-15yx^2

7 0
2 years ago
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The graphic below shows a protractor, which is used to measure angles . What is the level of accuracy of the measurement tool ?
Oksanka [162]

Answer:

Pretty...accurate

Step-by-step explanation:

It's pretty accurate

5 0
3 years ago
Read 2 more answers
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