Answer:
I would recommend using algebraic methods.
Step-by-step explanation:
Of course, guess and check takes a long time and is not very time efficient. If you're graphing it by hand, it'll take time and get tedious, and using algebraic methods will probably give you the most accurate answer. If you have access to a graphing calculator or graphing website like Desmos, then I would suggest using the program to check the answers you got using the algebraic methods.
Hope this helped :)
Second one because it don’t talk about minus when it talks about the three
Yes unless it states that t stands for something else like t is substituting a number in the problem, but if it didn’t, then yes, t is the variable
Answer:
I would say 25 or 30 it looks like25
Step-by-step explanation:
Step-by-step explanation:
9 = a7 + b
-2 = a9 + b
b = 9-7a and b = - 2-9a
9 - 7a = - 2-9a
2a = - 11
a = - 5.5
b = 9 - 5.5*7 = - 29.5
y = -5.5x - 29.5
