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A hovercraft takes off from a platform.
Its height (in meters), 3 seconds after takeoff, is modeled by
h(x) = -(x - 11)(x + 3)
How many seconds after takeoff will the hovercraft land on the ground

14

Step-by-step explanation:

when it lands on the ground, h(x) = 0

x = -3, x = 11

since it is 3 second after takeoff,

x = -3 + 3 = 0

x= 11+3 = 14

nlgqer

step-by-step

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.