3 years ago

Identify the y-intercept of the function y = -4x + 2.

Mathematics

2 answers:

kykrilka [37]3 years ago

7 0

Answer:

It's supposed to be y=2

y is the dependent variable = -4 is slope and x is independent plus 2 which is y intercept

balandron [24]3 years ago

3 0

The answer to y intercept is (0,2)

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Is y=-3x^2+10 a function? Justification?

Nonamiya [84]

I think a function but i am not sure

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3 years ago

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kogti [31]

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4 years ago

A model rocket is launched directly upward at a speed of 20 meters per second from the ground. The function f(t)=−4.9t2+20t, mod

Nataly [62]

Answer:

The rocket will reach its highest point about 2.04 seconds.

Step-by-step explanation:

The function:

$f(t)=-4.9t^2+20t$

Models the relationship between the height of the rocket and the time after launch t in seconds.

Since this is a quadratic function, the rocket will reach its highest point at its vertex. The vertex of a quadratic is given by:

$\displaystyle \Big(-\frac{b}{2a}, f\Big(-\frac{b}{2a}\Big)\Big)$

In this case, a = -4.9, b = 20, and c = 0. Thus:

$\displaystyle t=\frac{-(20)}{2(-4.9)}=\frac{10}{4.9}\approx 2.04$

The rocket reaches its maximum height after 10/4.9 or about 2.04 seconds.

Further Notes:

Then the maximum height of the rocket will be f(10/4.9):

$\displaystyle f\Big(\frac{10}{4.9}\Big)=-4.9\Big(\frac{10}{4.9}\Big)^2+20\Big(\frac{10}{4.9}\Big)\approx20.41\text{ feet}$

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3 years ago

Please help me out thank you.

s2008m [1.1K]

its A

Step-by-step explanation:

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3 years ago

Read 2 more answers

Given: ABCD is a parallelogram AM , BN − angle bisectors DM = 4 ft, MN = 3 ft Find: The perimeter of ABCD

Svetlanka [38]

Answer:

P= 30ft

Step-by-step explanation:

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