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tangare [24]
3 years ago
15

Need help asap!!! plzz

Mathematics
2 answers:
Trava [24]3 years ago
8 0

The third one! you can see the slope based on what’s before x (1/2), and the intercept, which is 3.

shusha [124]3 years ago
4 0

Answer:

y=\frac{1}{2}x+3

Step-by-step explanation:

First, we can see that this equation should be written in slope intercept form which is y=mx+b where m is the slope and b in the y intercept.

Just looking at the graph, we need to find the y-intercept, which is the y coordinate at where the graph crosses the y axis.

We can see that the y-intercept is (0,3) or +3

We can use this point and another point with natural numbers to find the slope.

We can find another point such as (-2,2) and find the slope by calculating the change of y divided by the change of x.

m=\frac{1}{2}

So the final equation is y=\frac{1}{2}x+3

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Need Help on this Part
Gnoma [55]

To determine the 'intervals of increase' and 'intervals of decrease' we can refer to the graph with respect to the x - axis.

• Knowing that t = x - axis, the 'intervals of increase' as an inequality would be 1 < x < 3, and 4 < x < ∞. Therefore we have our intervals of increase as (1,3) and (4, ∞).

• Respectively our 'intervals of decrease' as inequalities would be - ∞ < x < 1, and 3 < x < 4. Our intervals of decrease would then be (- ∞, 1) and (3,4).

• We are left with our local extrema and absolute extrema. Now remember the absolute extrema is the absolute lowest point in the whole graph, while the local extrema is the lowest point in a restricted interval. In this case our local extrema is our maximum, (3,1). But this maximum is not greater than the starting point (0, 4) so it appears, and hence their is no absolute extrema.

3 0
3 years ago
Use natural logarithms to solve the equation 9e 4x = 54 forx. Give the exact solution and an approximate
GuDViN [60]

Answer:

.448

Step-by-step explanation:

9e^{4x} = 54 \\e^{4x} = 54/9\\e^{4x} = 6\\ln{6} = 4x\\ln{6}/4 = x\\.448 =x\\(approx)

8 0
3 years ago
Write an explicit formula for each sequence.<br> 3, 7, 11, 15, ...
Stels [109]

Answer:

f(n)= f(1)+d(n-1)

Step-by-step explanation:

the aerithmetric explict formula is the one above, but im  not sure what the question is asking, your difference is 4 btw    

8 0
3 years ago
Hi:) how to do this?
musickatia [10]

Answer:

a) 127m (3 s.f.)

b) 271m (3 s.f.)

Step-by-step explanation:

Please see the attached pictures for full solution.

Method 1 is written in black and method 2 is written in pink.

4 0
3 years ago
The ordered pair below is a solution to which equation? (40, 5)
SIZIF [17.4K]
All we have to do here is to express numbers 40 and 5 in each of equations. Note that first number in brackets is always x coordinate and second number is y coordinate

First equation:
5 = 40*8  false

Second
5 = 5*40 false again

Third:
5 = 40/8 = 5 True

checking for just in case last one:
5 = 40/5 = 8 False

Correct one is C)
6 0
4 years ago
Read 2 more answers
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