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4 years ago

7

The function f(x) is graphed below.

2 answers:

ASHA 777 [7]4 years ago

4 0

Answer:

f(1) = 2

Step-by-step explanation:

Since y is a function of x, that is;

y = f(x)

f(1) implies the value of y when x = 1.

To obtain this value we draw the vertical line x = 1 and check where the line intersects the graph of f(x).

In this case, the line x = 1 will intersect with the graph of f(x) on the line y = 2. The function f(x) assumes the value 2 between x = 0 and x = 4. Therefore,

f(1) = 2

konstantin123 [22]4 years ago

3 0

Answer:

f(1) = 2

Step-by-step explanation:

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(-4,1) and (-8,7) <br><br> write an equation in slope-intercept form

Alchen [17]

Answer:

y = -2x - 9

Step-by-step explanation:

so we have our two points, (-4,-1) and (-8,7) What we need to do to find our slope is y2 - y1 over x2 - x1. Once plugging in the numbers and subtracting it should give you 8/-4. 8 divided by -4 is -2. m = -2. Now to find our "b" we plug in our slope, and plug in one of the two points into the format of y = mx + b.

-1 = -2(-4) + b

multiply -2 and -4

-1 = 8 + b

we subtract 8 from itself and -1

-9 = b

Our equation is y = -2x - 9

5 0

3 years ago

A ball is launched into the sky at 54. 4 ft./s from a 268.8 m tall building. The equation for the ball’s height, h, at time t se

Crank

Answer:

t = 21

Step-by-step explanation:

The ball strikes the groujd when h = 0.

$-3.2t^2 + 54.4t+268.8=0 \\ \\ 32t^2 - 544t-2688=0 \\ \\ t^2 - 17t-84=0 \\ \\ (t-21)(t+4)=0 \\ \\ t=-4, 21$

Since time must be positive, t = 21.

6 0

2 years ago

Please please please answer these questions!!!!! I’d really appreciate it!!

dem82 [27]

Answer:

8.

60 * 2 + 30 = 150km

225 - 150 = 75km

50km/h and 75km, so 1.30h

1.30 + 2.30 + 0.10 = 4.10h

Im not very good at english so I dont know how to explain...

9.

1.30 - 47 = At 12.43

5 0

3 years ago

Read 2 more answers

Find all solutions to the equation (x² + 5x + 6)(x² − 3x − 4) = 0.

Soloha48 [4]

Answer:

The solutions are:

$x=-2,\:x=-3,\:x=-1,\:x=4$

Step-by-step explanation:

To find the solutions to the equation $\left(x^2+5x+6\right)\left(x^2-3x-4\right)=0$ you need to:

Factor $\left(x^2+5x+6\right)$

Break the expression into groups

$x^2+5x+6=\left(x^2+2x\right)+\left(3x+6\right)$

Factor out $x$ from $(x^2+2x)$

$x^2+2x=x\left(x+2\right)$

Factor out 3 from $3x+6$

$3x+6=3\left(x+2\right)$

$x^2+5x+6=x\left(x+2\right)+3\left(x+2\right)\\\\\mathrm{Factor\:out\:common\:term\:}x+2\\\\x^2+5x+6=\left(x+2\right)\left(x+3\right)$

Factor $\left(x^2-3x-4\right)$

$x^2-3x-4=\left(x^2+x\right)+\left(-4x-4\right)\\\\x^2-3x-4=x\left(x+1\right)-4\left(x+1\right)\\\\x^2-3x-4=\left(x+1\right)\left(x-4\right)$

Therefore

$\left(x^2+5x+6\right)\left(x^2-3x-4\right)=\left(x+2\right)\left(x+3\right)\left(x+1\right)\left(x-4\right)=0$

Using the Zero Factor Theorem:

5 0

4 years ago

Need help :) will give brainless ⭐️!!

ivanzaharov [21]

Answer:

The answer is B.

Step-by-step explanation:

Counted 8 down and 5 to the right.

5 0

3 years ago