The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16ft/s^2, which equation models the height of the projectile correctly?

a) h(t)=-16t^2+42t+5
b) h(t)=-16t^2+5
c) h(t)=-16t^2+32
d) h(t)=-16t^2+32t+5

question

what is the value of the third quartile of the data set represented by this box plot? a. 19 b. 21 c. 26 d. 29

answer

c

207/8 is the right

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step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)