A scuba diver descends slowly into the ocean at a constant rate. His depth is recorded for the first minutes in the following table: a) how much deeper does the diver descend each minute?

b) what is the diver’s depth at minute 7?

c) how long will it take the scuba diver to reach a coral reef that is 120 feet deep?

d) Interpret the meaning of d8 = 96

a) 12 feet per minute

b) 84 feet

c) 10 minutes

d)

Step-by-step explanation:

a) find the slope using furmula: y1 - y2/x1 - x2

24 - 12/2 - 1

12/1

12

12 feet per minute

b) 12 feet per minute so multiply the slope, 12 by 7

12 * 7 = 84

c) 12 * time, t, = feet deep

12 * t = 120

12t = 120

/12 /12

t = 10

10 minutes

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!