Which of the following relations is a function?

a. { (-1, 4), (1,3), (2, 3), (3, 1) }

b. { (2,3), (4, 8), (1,3), (2, 4) }

c. { (2, 3), (3, 1), (2, 1), (3, 2) }

d. { (1, 1), (1, 2), (1, 3), (1, 4) }

I think its a

F (x) = 5x - 4 and g (x) = 4x + 1, find (f - g) (x).

Cards numbered 1 through 15 are mixed up and placed in a bag. Malik chooses one of the cards without looking. what is the probability that malik chooses a card with a number greater than or equal to 12? A. 4/5 B. 4/15 C. 1/4 D. 1/5

Write the equation of the line with the given slope and y-intercept. slope = 1 y-intercept = - 3 4 A) y = x - 3 / 4 B) x = y - 3 / 4 C) y = - 3 / 4 x + 1 D) x = - 3 / 4 y + 1

Significance tests A test of H0: p = 0.65 against Ha: p < 0.65 has test statistic z = - 1.78. (a) What conclusion would you draw at the 5% significance level? At the 1% level? (b) If the alternative hypothesis were Ha: p ≠ 0.

Two legs of a right triangle each measure 10 inches how long is the hypotenuse

How to solve 2 (t+5/8) = 7 1/4

Joe and mike both ran the same race. Joe finish the race 4 minutes before mike. If mike finish the race at 4:02pm what time did joe finish the race

Can a triangle have two obtuse angles? Explain

Solve for r. r16≥8 r≥2 r≤2 r≥128 r≤128

Express your answer in the smaller unit 800m 35cm - 154 m 49 cm equals