Plant A: y = 3x + 8
Plant B: y = 2x + 12
Kristin bought two sunflower plants. Plant A is 8 inches tall and is growing at a rate of 3 inches per week. Plant B is 12 inches tall and is growing at a rate of 2 inches per week. Write the two equations to represent each sunflower plant if the plants to continue to grow at the same rate. In your equations, x represents the number of weeks, and y represents the height of the plant in inches.
3 answers
When will the plants be exactly the same height?
This question requires you to show your work.
(1 point)
The plants will be exactly the same height during week .
This question requires you to show your work.
(1 point)
The plants will be exactly the same height during week .
To find out when the plants will be exactly the same height, we can set the two equations equal to each other:
3x + 8 = 2x + 12
Subtract 2x from both sides:
x + 8 = 12
Subtract 8 from both sides:
x = 4
Therefore, the plants will be exactly the same height during week 4.
3x + 8 = 2x + 12
Subtract 2x from both sides:
x + 8 = 12
Subtract 8 from both sides:
x = 4
Therefore, the plants will be exactly the same height during week 4.