Answer:
9. B: y = 7.5x - 2
10. y = 2x - 1/4
11. C: A newborn baby weighs 8 pounds at birth and gains 1.5 pounds for 3 months.
Step-by-step explanation:
If there is a minus symbol before the y-intercept then the slope is negative.
For 0 it has 8. A newborn baby is 0 months old.
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