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Nata [24]
3 years ago
5

Which exponential function is represented by the

Mathematics
1 answer:
Leno4ka [110]3 years ago
8 0

Answer:

C, f(x) = 3(2)^x

Step-by-step explanation:

Since the y-intercept is 3, the function will have 3 multiplying by some number to the power of x.

As x increases by 1, we notice that y multiplies by 2 every time.

This leads us to believe that the equation is 3 * 2^x

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Help! Show steps please! I NEED THE STEPSSS
NemiM [27]

Answer:

-\frac{4}{3}

Step-by-step explanation:

We're trying to make the coefficient of x 1, so that we can have x is equal to something.

We'll find the required number:

\frac{1}{-\frac{3}{4}}\\\\=1*(-\frac{4}{3})\\\\=-\frac{4}{3}

We'll check this works: -\frac{3}{4}*(-\frac{4}{3})=1.

4 0
3 years ago
drake made 12 out of 30 free throw shots. about how many out of the next 50 free throw shots would you expect him to make?
larisa86 [58]
12/30 X/50 you'd cross multiply and get 30X=600 get 30 away from X which you'd divide 600 by 30 and get 20. drake is expect to make 20 out of 50 free throws
7 0
3 years ago
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L need the answer for this question asap!!!
DochEvi [55]
<h2>Answer:</h2><h3>A. Domain </h3>

The domain of a function is the x-values that the graph applies to. This means that the domain is whatever x-values the graph crosses. All vertical parabolas (like the one pictured) have a domain of all reals. This is because any x-value could be plugged into the function and provide a y-value. while it may not seem like it, that graph will cover every single x-value in existence.

  • Domain = All reals

<h3>B. Range</h3>

The range is similar to the domain but is for y-values. So, the range is whatever y-values the graph applies to and crosses. As you can see from the graph, there are no y-values above 1. This means the range is y≤1.

  • Range = y ≤ 1

<h3>C. Increasing Interval</h3>

A graph is increasing when the y-values are increasing. So, on the parent function of a parabola, the graph increases to the right and decreases to the left. However, this graph is inverted and shifted to the left, so the interval will also be flipped and shifted. In this case, the graph increases from -∞ to 2.

  • Increasing Interval = [-∞, 2]

<h3>D. Decreasing Interval</h3>

The decreasing interval is very similar to the increasing interval. This interval applies when the y-values are decreasing as the x-values increase. For a parabola, the increasing and decreasing intervals always meet at the x-value of the vertex, which is 2 on this graph. The y-values decrease during the interval 2 to ∞.

  • Decreasing Interval = [2, ∞]

<h3>E. Opening</h3>

The direction of a parabola is decided by the sign (+ or -) of the leading coefficient. Positive coefficients open up and negative opens down. As you can see from the graph, the sides of the parabola point downwards. This means that the leading coefficient must be negative.

  • Opening = Down

<h3>F. Min and Max</h3>

A parabola will always only have a min or a max, never both. If a graph opens up it has a min because there is one y-value which is the minimum possible y-value. Graphs that open downwards have a maximum because there is one y-value that is the largest possible. So, this graph has a maximum of 1 because that is the largest possible y-value.

  • Max = 1
4 0
2 years ago
PLEASE HELP WILL GIVE BRAINLIST!
iris [78.8K]

Answer: Yes, it does because linear equations are straight lines, this means the degree of a linear equation must be 0 or 1 for each of its variables. For y=5x, the degree of variable y is 1 and the degree of variable x is 1.

8 0
3 years ago
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How many times does the quadratic function below intersect the x-axis?<br> y = x+3x+15
MArishka [77]
B. 0

because it’s a positive parabola and the y-intercept is greater than 0
6 0
3 years ago
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