35+2x=20+2.50x
subtract 2.50x
35+0.50x=20
subtract 35 frim both sides
0.50x=-15
x=-30
Standard form: Ax + By = C
Add 8 and subtract y
Solution: 10x - y = 8
The answer to your question is the last option because the total of the whole table is 1.0. And, mathematically speaking, y cannot possibly be 1.0 if the tables values all add up to 1.0
a)
value of y is decreasing
b) value of y is decreasing
c) because at x = 5 denominator becomes 0 and divide by 0 not allowed so showing ERROR