First, solve for slope.
Formula for slope:
Plug in values:
Slope:
Second, we must plug into point-slope form.
Formula for point-slope:
Plug in the values
hope this helps
In order to find an average, you have to add all the numbers and divide by the number of things you added.
120.37 + 108.45 + 114.86 = 343.68
343.68/3 = 114.56
She spent an average of $114.56 each month on groceries.
Answer:

Step-by-step explanation:
Factorise in order to reveal factors.

Answer:
B-16
Step-by-step explanation:
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Answer:
-4/3
Step-by-step explanation:
mtan × mline = -1
mtan× 3/4 = -1
mtan =-4/3