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2 years ago

F(x) = 2x^2 Find f(-6)

Mathematics

1 answer:

katrin2010 [14]2 years ago

7 0

Answer:

f(-6) = 72

Step-by-step explanation:

Input -6 for x :

2(-6)²

Complete with P.E.M.D.A.S :

2(36)

then :

so therefore :

f(-6) = 72

f of x equals 72

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The value of a car t years after it is purchased is given by the decreasing function V, where V(t) is measured in dollars. The r

Lana71 [14]

Answer:

dV(t)/dt = kV(t)

Step-by-step explanation:

Since the rate of change of the car’s value in dollars per year dV(t)/dt is proportional to the car’s value V(t), ten

dV(t)/dt ∝ V(t)

dV(t)/dt = kV(t)

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3 years ago

The graph shows the locations of a ball and a player seconds after the ball is thrown. What point could represent the player cat

svp [43]

Answer: The player is catching the ball at (4,25), therefore the second option is correct.

Explanation:

It the given graph x-axis represents the time (in seconds) after throw and y-axis represents the distance from goal (in yards).

In the graph violet and orange lines represents the distance of player and ball respectively, from the goal at different point of time.

The player will catch the ball when the distance of player and ball from the goal is same on the single point of time.

The point of time where distance of player and ball from the goal is same, is the point of intersection of both lines.

From the graph it is clearly noticed that both lines violet and orange insects at point (4,26), therefore player is catching the ball at (4,25), therefore the second option is correct.

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3 years ago

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Turning off the water while brushing your teeth saves 379 centiliters of water. How many liters of water can you save if you tur

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379 centiliters one time
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3 years ago

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Help me with question 2 plss

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I cannot do this because it wont let me look at the attachment i am sorry

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3 years ago

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Line Equation from Two Points

Verdich [7]

Hi!

We can use point-slope form to solve this.

$y-y_{1} =m(x -x_{1})$

$y_{1}$ and $x_{1}$ will be from one of the points.

First, we have to find $m$ , the slope. We can use the slope equation to get this.

$\frac{y_{1} -y_{2} }{x_{1} -x_{2} }$

Plug in your points:

$\frac{4-0}{8-(-8)} =\frac{4-0}{8+8} =\frac{4}{16} =\frac{1}{4}$

Your slope is $\frac{1}{4}$

Now plug points and slope into point-slope equation. We will use (8, 4).

$y-4=\frac{1}{4} (x-8)$

Now, if you want to get it into y = mx + b form, you have to solve for y:

$y-4=\frac{1}{4} (x-8)$

$y-4=\frac{1}{4} x-2$

$y=\frac{1}{4} +2$

Your equation is $y=\frac{1}{4} +2$

For more information on how to get the equation of a line when given two points, see here:

brainly.com/question/986503

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2 years ago