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My name is Ann [436]
3 years ago
14

Use a graphing calculator to approximate the vertex of the graph of the parabola defined by the following

Mathematics
1 answer:
vivado [14]3 years ago
3 0

Answer:  (-0.4, 6.8)

The graph is attached

Step-by-step explanation:

We can find the axis of symmetry using the formula x = -b/2a

x = - -4/2(-5)

x = 4/-10

x = 0.04

Substitute for x and calculate y

y = \left(0.4^{2}\right)\left(-5\right)-4\left(-0.4\right)\ +6

y = 6.8

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the slope of line PQ is m= 1/4. find the equation of the line that is parallel to line PQ and that has the y intercept b= -3
nevsk [136]
For this case we have that the generic equation of the line is given by:
 y = mx + b

 Where,
 m: slope of the line
 b: intersection with the y axis.
 Since the line is parallel to PQ, then the slopes are equal.
 We have then:
 m = 1/4.

 On the other hand we have:
 b = -3

 Substituting values we have:
 y = (1/4) x - 3
 Answer:
 The equation of the line that is parallel to line PQ and that has the and intercept b = -3 is:
 y = (1/4) x - 3
4 0
3 years ago
1. Express 30 out of 40 and 40 out of 50 as a percentage. Which is<br> the better score?
Ymorist [56]

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5 0
3 years ago
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Scilla [17]

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Subtract 'lh' from each side:                s/2 - lh = lw + wh

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Divide each side by (l + h):  (s/2 - lh) / (l + h) = w

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Now to find the median you put all the numbers in order from least to greatest: 9;9;9;11;11;13;14 and you take the number in the middle but since both 11 and 11 are in the middle you take the mean of them and the mean of them is 11 so the median of the numbers is 11

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