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Ipatiy [6.2K]
3 years ago
13

The function y=px2−4x+qy=px2−4x+q in the x-y plane attains a minimum value. What is the value of xx? 1) p=2p=2 2) q=5

Mathematics
1 answer:
Leni [432]3 years ago
5 0

Answer:

1

Step-by-step explanation:

Given function:

y = px² - 4x + q

To find the points of maxima or minima

\frac{dy}{dx} = 0

or

2px - 4 + 0 = 0

or

px = 2

or

x = [2 ÷ p]

at p = 2

x = 2 ÷ 2 = 1

To check for minima

\frac{d^2y}{dx^2} > 0

thus,

2p - 0 > 0

2p > 0

for positive value of p function is minimum at x = 1

2) at q = 5 also x = 1 as value of x is independent of q

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Find the rate of change between (-3,6) (0,-3)
marin [14]
<h3>The rate of change between (-3,6) (0,-3) is -3</h3>

<em><u>Solution:</u></em>

Given that,

We have to find the rate of change between (-3,6) (0,-3)

<em><u>The rate of change is given as:</u></em>

Rate\ of\ change = \frac{y_2-y_1}{x_2-x_1}

From given,

(x_1, y_1) = (-3, 6)\\\\(x_2, y_2) = (0, -3)

<em><u>Substituting the values we get,</u></em>

Rate\ of\ change = \frac{-3-6}{0+3}\\\\Rate\ of\ change = \frac{-9}{3}\\\\Rate\ of\ change = -3

Thus rate of change is -3

3 0
3 years ago
How do you find the product of -9over5 times 5over 3? please help.
Inessa [10]
Here look at this for my answer...

3 0
3 years ago
A.)4x-3y=6<br> B.)4x+3y=6<br> C.) 4x-3y=-6<br> D.)4x+3y=-6
natima [27]
C would be my guess here
4 0
3 years ago
If given a radius of 6mm, what is the diameter?
Leviafan [203]

Answer:

If the radius is 6mm, the diameter is 12mm.

If the diameter is 22 ft, the radius is 11 ft.

Step-by-step explanation:

1st one) When you try to find the diameter of any circle, and you already have the radius, you need to multiply it by two (double it)

6 x 2 = 12mm

2nd one) Then to do the opposite, you need to divide the diameter by 2.

22/2 = 11 ft

Hope this helped :)

5 0
2 years ago
There are 45 vehicles in a parking lot. Three fifths of the vehicles are minivans. How many of the vehicles in the parking lot a
suter [353]

Answer: There are 27 minivans out of the vehicles in the parking lot.

Step-by-step explanation:

Since we have given that

Number of vehicles in a parking lot = 45

Part of the vehicles are minivans is given by

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Number of vehicles in the parking lot are minivans is given by

\frac{3}{5}\times 45\\\\=3\times 9\\\\=27

Hence, there are 27 minivans out of the vehicles in the parking lot.

6 0
3 years ago
Read 2 more answers
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