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AmbitiousAndProud
01.07.2020 •
Mathematics
I need to write the equation of the line in slope intercept form
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Ответ:
y = 2x + 5
Step-by-step explanation:
Step 1: Find slope
m = (3-1)/(-1+2) = 2
Step 2: Find y-intercept
(0, 5)
Step 3: Write in slope-intercept form
y = mx + b
y = 2x + 5
And we have your answer!
Ответ:
(a) The ONLY explicit rule for the nth term of the sequence is
.
Step-by-step explanation:
Here, the given sequence is 7, -7, 7, -7, ...
The first term = 7, Second term = -7, Third term =-7 and so on..
Now check the given sequence for each given formula, we get:
(1)![a_n = 7 \times (-1)^{n-1}\\](/tpl/images/0399/7743/87760.png)
Now, for n = 1 :![a_1 = 7 \times (-1)^{1-1}\\](/tpl/images/0399/7743/b3e59.png)
Similarly, for, n = 2:![a_2 = 7 \times (-1)^{2-1}\\](/tpl/images/0399/7743/ff5a0.png)
Hence, the given formula satisfies the given sequence.
(2)![a_n = 7 \times (-1)^{n}\\](/tpl/images/0399/7743/efd18.png)
Now, for n = 1 :![a_1 = 7 \times (-1)^{1}\\](/tpl/images/0399/7743/20055.png)
But, First term = 7
Hence, the given formula DO NOT satisfy the given sequence.
(3)![a_n = 7 \times (1)^{n-1}\\](/tpl/images/0399/7743/f7996.png)
Now, for n = 1 :![a_1 = 7 \times (1)^{1-1}\\](/tpl/images/0399/7743/c9663.png)
Similarly, for, n = 2:![a_2 = 7 \times (1)^{2-1}\\](/tpl/images/0399/7743/df748.png)
But, Second term = -7
Hence, the given formula DO NOT satisfy the given sequence.
(4)![a_n = 7 \times (1)^{n+1}\\](/tpl/images/0399/7743/94dfb.png)
Now, for n = 1 :![a_1 = 7 \times (1)^{1+1}\\](/tpl/images/0399/7743/42cdb.png)
Similarly, for, n = 2:![a_2 = 7 \times (1)^{2+1}\\](/tpl/images/0399/7743/9c5c3.png)
But, Second term = -7
Hence, the given formula DO NOT satisfy the given sequence.
So, the ONLY explicit rule for the nth term of the sequence is
.