The equation y=2/7x-8 represents a function wheres x is the input and y is the output which of thr following statement correct ly the function? A. the graph is linear because it is always increasing .
b. the graph is linear because it increases at a constant rate .
c. the graph is nonlinear because it us always increasing.
d. the graph is nonlinear it increases at a constant rate .
*i really need this answer*

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?