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noahdeem135
15.02.2021 •
Mathematics
4(x – 3)
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Ответ:
4x-12
Step-by-step explanation:
4 x x is 4x and 4x-3 is -12
Ответ:
y =![3*2^{x}](/tpl/images/0008/0114/2f882.png)
Step-by-step explanation:
The general form for an exponential function is :
y =![ab^{x}](/tpl/images/0008/0114/029c7.png)
We need to find out what a and b are using the values given in the graph.
we can see that (x=0, y = 3) and (x=1, y = 6) are points on the curve. Substitute these into the general equation
for (x=0, y = 3),
3 =![ab^{0}](/tpl/images/0008/0114/f19bc.png)
3 = a (1) or a = 3
for (x=1, y = 6),
6 =![ab^{1}](/tpl/images/0008/0114/ea90e.png)
6 = ab (substitute a=3 from previous calculation)
6 = 3b
b = 2
Hence the equation is:
y =![3*2^{x}](/tpl/images/0008/0114/2f882.png)
Edit reason: typo in the final answer