Answer:
x ≥ $750
Step-by-step explanation:
Find the slope of the first line, that is the difference of the y’s over the difference of the x’s. This way: 2-5/2-5=-3/-3 which equals 1
Now find the slope of the second line 2-(-6)/-5-3
=8/-8
=-1
The slopes are opposite reciprocal ( you could also say that the product of the 2 slopes equals -1) therefore the lines are perpendicular.
Let's put these into decimals to make it easier.
8 1/4 = 8.25, and 3 2/5 = 3.40
Now that we have them in decimal form we can add them.
8.25 + 3.40 = 11.65, or 11 13/20.
I hope this helps!
The soultion 8 is the number of days the plant has been growing. To see if he is correct, put it in for x.
5(8)+22
40+22
62
His equation is correct.
