Answer:
a) 4
b) 10
Thank you and please rate me as brainliest as it will help me to level up
15x + 30y = -10....reduce by dividing by 5
3x + 6y = -2...same as first equation...same line ..means infinite solutions
The equation of a line in point slope form =

To put

into function notation, we need to get y by its self.
Lets say we had a point (2,2) and a slope of 3. Ok, now that we have our point and slope, lets turn point slope form into function notation.





Change the y to f(x)

<-----Function notation.
If you take 0.98 and multiply by 2.5 you get 2.45 so there is no better deal. ☺
Answer:
3
Step-by-step explanation:
The notation "f(4)" means you put 4 where x is in the algebraic expression, then do the arithmetic.
f(4) = 2·4 -5
= 8 -5
= 3