Evaluate the expression. Write your answer in the simplest form. 19/20 + (−18/20) + 17/20 + (−16/20) + ... + (−4/20) + 3/20 + (−2/20) + 1/20

Step-by-step explanation:

There is a pattern. All the odd numbers are positive. , , , and the even numbers are positive , , , . The three dots in between mean to include the fractions inbetween and . This is to . Because all the fractions have a denominator of 20 every number between 5 and 15 is the numerator and 20 is the denominator.  

numerator/denominator

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?