Line A is represented by the following equation: x + y = 2 What is most likely the equation for line B so the set of equations has no solution? (4
points)
1) x + 2y = 2
2) 2x + 2y = 4
3) 2x + y = 2
4) x + y = 4

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !