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The form of linear function is: y = ax + b. We have to determine a and b coefficients. For example, we have two variables with their values which are displayed in two colunm. The formulate for these coefficients as below: a = sum of [(xi-xaverage)*(yi-yaverage)] / sum of [(xi-xaverage)2] b = a*xaverage - yaverage You need to calculate correlative coefficient r2. The formulate as below: r2 = [(a*SD(xi)/SD(yi)]2 Where: SD - Standard Deviation.
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Is an exponential function linear?
No. An exponential function is not linear. A very easy way to understand what is and what is not a linear function is in the word, "linear function." A linear function, when graphed, must form a straight line.P.S. The basic formula for any linear function is y=mx+b. No matter what number you put in for the m and b variables, you will always make a linear function.
How can you write an equation in two variable to solve a problem?
If there are two variables, you'll usually need two equations in the two variables, to be able to find a specific solution. How you write the equation depends on the specific problem. In general, it requires some practice, to be able to convert a word problem into mathematical equations.
Write down a word problem using addition and subtraction?
3-3=0
How can you write 12n equals 108 in a word problem?
Twelve times a number is one hundred and eight.
How do you write a word problem to represent equation 2n equals 20?
Dan and Emma have $20 and they buy 2 pack of pen how much do they have now
