Answer:
Step-by-step explanation:
A linear function is always a one-to-one function.
Switch y and x.
x = -8y + 1
-1/8x + 1/8 = f(x)
Answer:
Step-by-step explanation:
g(5)= (-5)^2 + 5(-2) - 4
25 - 10 - 4
15 - 4 = 11
f(11)= (11)^2 + 2(11) + 3
121 + 22 + 3
143 + 3 = 146
Answer:
- Number of calories in burger = 620 calories
- Number of calories in hotdog = 400 calories
Step-by-step explanation:
Number of calories in burger = x
Number of calories in hotdog = y
y = x - 220
x + 2y = 1,420
Substitution:
x + 2 * (x - 220) = 1,420
x + 2x - 440 = 1,420
3x = 1,420 + 440
x = 1,860 / 3
x = 620 calories
y = x - 220
= 620 - 220
= 400 calories
