Question

5. The graph below shows the height of a

flower based on the number of weeks since it
was planted. What is the linear equation
representing this situation?
Flower Height
13
12
11
10
A. y = 2x + 2
B. y = 3x + 3
C. y = 3x
D. y = 3x + 2
9
10
Weeks

Answer 1

D. y = 3x + 2

Explanation:

y = mx + b,

where m = slope = rise/run,

and b = y-intercept

From the graph we see that b = 2, s we have

y = mx + 2

Now we look for the slope. Start at (0, 2), the y-intercept, go up 3, a rise of 3, and right 1, a run of 1 to the next point on a grid line intersection.

m = slope = rise/run = 3/1 = 3

Now we have

y = 3x + 2

Answer: D. y = 3x + 2

Answer 2

Answer: D. y = 3x + 2

Step-by-step explanation: because that's what it shows in the graph