Mary's age is 10 years less than 2 times Joe's age. If the difference between their ages is 30, how old is Mary?
2 answers:
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Answer: 1
Step-by-step explanation:
So, the average rate of change is:
The question is wrong, the expression will not be in terms of h since it is a linear function.
Here you go! Sorry for the bad handwriting :/
Answer:
y=1
Step-by-step explanation:
you can use those points to find the slope
use the equation then plug in the numbers
so (1-1)/(-8-7) = 0/15 so the slope is zero meaning it is a horizontal line which we can tell logically because the y coordinates of both points are 1.
so if you plug those numbers into the formula y=mx+b where m is slope and b is the y intercept then
you get y=0*x+1
then 0*x is just zero and it goes away so the equation for this line is y=1
Hope this helps! :)