Answer:
(a) x > 4 (b) y < -2
Step-by-step explanation:
Domain is referring to the x-values while the range is referring to the y-values.
Since the function (the line) has a circle at the point (4, -2), the function will be exclusive at that coordinate.
The line goes to infinity for the x-values from 4, so you write x > 4 or ∞ > x > 4.
Similarly, the line goes to infinity for the y-values from -2, so you write y < -2 or -∞ < y < -2.
Answer:
1/9
Step-by-step explanation:
when you have a negative exponent, you move the term to the denominator: 1/3^2
then you just do 3^2: 1/9
Answer:
24
Step-by-step explanation:
(25-10) ÷ 5 × 8
15 ÷ 5 × 8
3 × 8
24
Answer:
31
Step-by-step explanation:
x+y = 57
x = y+5
=>
y + 5 + y = 57
=> 2×y + 5 = 57
=> 2×y = 52
=> y = 26
=> x = 26 + 5 = 31
Answer:
y = 733x
Step-by-step explanation:
y equals the total amount of waste collected, 733 is the number of tons collected every month, and x is the number of months.
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