Gen. Math Review

Which of the following represents a one - to - one function?

• Students to their height

• Students to their weight

• Students to their LRN

• Students to their age

A jeepney ride costs ₱8.00 for the first 2 kilometers and an additional of 1 peso for every succeeding kilometer travelled. Give the model of the piecewise function with respect to the relationship of the fare to the distance (d).

• 
• 
• 
• 

What is (g + f) (x) when f(x) = x + 4; g(x) = 2x - 4?

• 3x + 8

• 3x - 8

• 3x

•  x²

• x+2

• x-2

• x-4

• x+4

When g(x) = x – 8, what is g(0)?

• 8

• -8

• 0

• 80

A computer shop at the mall charges ₱30.00 for the first two hours and an additional of ₱15.00 per hour (or a fraction of an hour) for each succeeding hour. How much will you pay if you play for 120 minutes in the said shop?

• ₱25.00

• ₱30.00

• ₱45.00

• ₱60.00

Which of the following is considered rational inequality?

• 
• 
• 
• 

• 1

• 2

• -1

• -2

• 𝐷𝑜𝑚(𝑓) = {𝑥/𝑥∈𝑅; 𝑥 ≠ 4}

• 𝐷𝑜𝑚(𝑓) = {𝑥/𝑥∈𝑅; 𝑥≠ − 4}

• 𝐷𝑜𝑚(𝑓) = {𝑥/𝑥∈𝑅; 𝑥 = 4}

• 𝐷𝑜𝑚(𝑓) = {𝑥/𝑥≠ − 4}

• x = -5, -2, 0, 1, 3

• x = -5, 1

• x = 2, -3

• x = -5, 0, 1