For the following exercises, write the quadratic function in standard form. Then, give the vertex and axes intercepts.Finally, graph the function. 2. f ( x ) = − 2 x 2 − 4 x
For the following exercises, write the quadratic function in standard form. Then, give the vertex and axes intercepts.Finally, graph the function. 2. f ( x ) = − 2 x 2 − 4 x
For the following exercises, write the quadratic function in standard form. Then, give the vertex and axes intercepts.Finally, graph the function.
2.
f
(
x
)
=
−
2
x
2
−
4
x
Expression, rule, or law that gives the relationship between an independent variable and dependent variable. Some important types of functions are injective function, surjective function, polynomial function, and inverse function.
The annual sales of Amazon since 2015 can be modeled by the function
s(t)=(2t+7)2+43 where t is year since 2015. Find the equation to model the total sales, S(t), earned by Amazon since 2015.
A model rocket is launched from the top of a cliff 144 feet
above sea level. The function
s(t) = -16r + 128t + 144
describes the rocket's height above the water, s(t), in feet,
t seconds after it is launched. The rocket misses the edge of
the cliff on its way down and eventually lands in the ocean.
How long will it take for the rocket to hit the water?
Kelly has 16 m of fencing to enclose her flower garden. The
function f(x) =- (x - 4)* + 16 can be used to model the area
of the garden, where x is the length of fencing in metres.
What is the domain for the measure of fencing Kelly can use
for the length?
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