An object is launched from the ground. The object's
height, in feet, can be described by the quadratic function
h(t) = 80t – 16t2, where t is the time, in seconds, since
the object was launched. When will the object hit the
ground after it is launched? Explain how you found your
answer

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

b. b < 1 might be the correct answer

i think it is d. hope this