The slope is 8. Ask your teacher about the slope formula.
Ratio 1:3 can be written as 1/3
sale price / original price : 1/3 = x / 81
this is a proportion, so we cross multiply
(3)(x) = (1)(81)
3x = 81
x = 81/3
x = 27 <== sale price
and notice that 1/3 = 27/81...these are equivalent fractions because that is what proportions are, equivalent fractions
Answer:
D) T
Step-by-step explanation:
A table that does not represent has two or more of the same x-values that map to different y-values (i.e. (3,4), (3,5), (3,6)).
Thus, given the information above, we can conclude that option D is the correct answer because Table T has (3,4), (3,-4) and (4,5), (4,-5), which are coordinates with same x-values but different y-values.