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Marianna [84]
2 years ago
12

I still need help with similar question

Mathematics
1 answer:
KatRina [158]2 years ago
3 0

Step-by-step explanation:

<u>Step 1:  Determine the axis of symmetry</u>

The axis of symmetry is middle of the parabola.  In this equation we see that at x = -1 we have the vertex and also the middle of the parabola.  So our axis of symmetry is x = -1.

<u>Step 2:  Determine the vertex</u>

The vertex is the minimum or maximum of a parabola and is bent in a crest form.  In this example the vertex is at (-1, -3) because we are using the tip of the graph.

<u>Step 3:  Determine the y-intercept</u>

The y-intercept is where the graph intersects with the y-axis.  In this example we intersect the y-axis at -4 so that means that our point would be (0, -4) meaning that we intersect x = 0 at -4.

<u>Step 4:  Determine if the vertex is a min or max</u>

Looking at the graph we can see that the rest of the red line is beneath the vertex point which means that the vertex is a max.

<u>Step 5:  Determine the domain</u>

The domain is the x-values that we are going to be using and we know that we are reaching toward positive and negative inifity which means that we are using all real numbers.

<u>Step 6:  Determine the range</u>

The range is the y axis and what y values we are able to reach using the graph.  In this example we can see that all y-values above -3 are not being used therefore the range is y \leq -3

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at noon joice drove to the lake at 30 mi. per hour, but she made a long walk back at 4 mi. per hour. how long did she walk ifshe
Kryger [21]
Distance = 30 mph * time
distance = 4 mph * time

distance = 30 mph * t
distance = 4 mph * (17-t)

Since distance is equal then
30 mph * t = 4 mph * (17-t)
 
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34t = 68

t = 2 hours

We see the return trip time is (17 -t ) which is 15 hours.
The beginning trip time is 2 hours.

Double Check
Beginning trip = 30 miles * 2 = 60 miles
Return trip = 4 miles * 15 = 60 miles.


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3 years ago
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Sholpan [36]
We know that
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the answer is
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Answer:

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Step-by-step explanation:

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swat32
Andrew will run 32 miles.

Explanation:
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Answer:

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Step-by-step explanation:

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