D... flip 1/5 into 5 is the correct way
Step-by-step explanation:
let eqn be y = mx + b.
m = 80/10 = 8
sub (0, 0):
0 = 8(0) + b
b = 0
therefore equation is y = 8x
Topic: coordinate geometry
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(a) y = -7/5x + 17.8
(b) it decreased by 7/5 per day.
Hope this helps!!! :)
Can you take a picture of the question so I can solve it