Which ordered pair is a solution to Y equals 4.5 X + 20?

A. (5,40)

B. (7,52)

C. (10,25)

D. (12,74)

For this case, what you should do is replace each by ordered in the function and see which satisfies the equality. Substituting we have:

Y = 4.5 X + 20

A. (5,40)

40 = 4.5 * (5) + 20 = 42.5

40 = 42.5 (NO)

B. (7,52)

52 = 4.5 * (7) + 20 = 51.5

52 = 51.5 (NO)

C. (10,25)

25 = 4.5 * (10) + 20 = 65

25 = 65 (NO)

D. (12,74)

74 = 4.5 * (12) + 20 = 74

74 = 74 (YES)

Answer:

The ordered pair solution is D. (12.74)

In order to find out which ordered pair is a solution, we simply input each X value to the equation provided and see if it yields the given Y value. For A: 4.5*5 + 20 = 22.5 + 20 = 42.5 40 For B: 4.5*7 + 20 = 31.5 + 20 = 51.5 52 For C: 4.5*10 + 20 = 45 + 20 = 65 25 For D: 4.5*12 + 20 = 52 + 20 = 74. Thus D is the correct answer.