So for finite series like these, you just plug in each number for k that it tells you. The first says the sum of 3k^2 from k=1 to k=4. Just plug integer k between 1 and 4 into the equation and add them together:
3(1^2)+3(2^2)+3(3^2)+3(4^2)=90
Same for the next one, except this is for all values of k between 3 and 6:
(-5(3)+20)+(-5(4)+20)+(-5(5)+20)+(-5(6)+20)=<span>-10</span>
Answer:
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Step-by-step explanation:
give me a couple of minutes to figure it out then I will post the answer!
Answer:
Slope (m) = 
Step-by-step explanation:
Use the following equation:
Slope 
Let:
Plug in the corresponding numbers to the corresponding variables:
Simplify. Divide common factors from both the numerator and denominator:
is your answer.
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It would just be 1. Because f(4) just mans replace every value ‘x’ with the number 4, which would give you 4 minus 3
