1. Given
[tex]h(x) = \frac{5x - 6}{3} [/tex]
determine h(3)
a. -3
b. 3
c. 1
d. -1
2. Let f(x) = 3x² - x+ 5, find f(x+1)
a. 3x² + 5x + 5
b. 3x² + 5x + 7
c. 3x² - x + 9
d. 3x² + 5x + 9
3. Which of the following expresses the total earnings (E) as a function of the number (n) of days if a laborer works and earning 400.00 pesos per day?
a. E(n) = 400 + n
b. E(n) = 400 divided by n
c. E(n) = 400(n)
d. E(n) = 400 - n
4. If the temperature in degree Celsius inside the Earth is represented by T(d) = 10d + 20 where (d) is the depth in kilometers, what is the temperature inside the Earth in 10 kilometers?
a. 40°C
b. 50°C
c. 120°C
d. 180°C
5. Express the perimeter P of a square with side x as a function of it's area
a. A = p²/16
b. A = 16p²
c. A = p²/4
d. A = 16/p²
(Hope you can help me this)
[tex]h(x) = \frac{5x - 6}{3} [/tex]
determine h(3)
a. -3
b. 3
c. 1
d. -1
2. Let f(x) = 3x² - x+ 5, find f(x+1)
a. 3x² + 5x + 5
b. 3x² + 5x + 7
c. 3x² - x + 9
d. 3x² + 5x + 9
3. Which of the following expresses the total earnings (E) as a function of the number (n) of days if a laborer works and earning 400.00 pesos per day?
a. E(n) = 400 + n
b. E(n) = 400 divided by n
c. E(n) = 400(n)
d. E(n) = 400 - n
4. If the temperature in degree Celsius inside the Earth is represented by T(d) = 10d + 20 where (d) is the depth in kilometers, what is the temperature inside the Earth in 10 kilometers?
a. 40°C
b. 50°C
c. 120°C
d. 180°C
5. Express the perimeter P of a square with side x as a function of it's area
a. A = p²/16
b. A = 16p²
c. A = p²/4
d. A = 16/p²
(Hope you can help me this)
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Answer:
1. b
2. d
3. b
4. c
5. a
Step-by-step explanation:
I used substitution in 1, 2 and 4