Answer:
m+7
Step-by-step explanation:
If she ran 7 minutes longer and m represents the amount of time she ran, then it would just be addition.
Let's say m=60 minutes. She would've ran for 67 minutes, which is also m+7.
It's pretty clear what the pattern is - 2^(k-1) * (-1)^(k-1) would work backwards, but we have to work forwards to get lower in this case, so we could start at -3 (as long as we put the k-1 in absolute value to make sure it's not 1/8), so we could write it as ∑ (k=1, goes to 4) 2^(|k-4|)*(-1)^(k-4)
It doesn't matter for k-4 because 1/-1 and 1/1 are the same thing as -1 and 1 respectively
Simply solve for x. Divide both sides by -3. Since you are dividing by a negative, flip the inequality sign. This gives you x<-2.
Note that the answer is x is less than or equal to -2. I am unable to insert the correct symbol on my keyboard.
This is the point-slope formula:
We know:
x=1
y=3
m=slope=2
plug those into the formula and get
Final answer:
