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3 years ago

7

In the picture down below

2 answers:

Romashka-Z-Leto [24]3 years ago

5 0

Answer:

A is the solution

Step-by-step explanation:

plot points for the graph

F(x)= |x|

<u>x F(x) </u>

1 1

-1 1

-2 2

Setler [38]3 years ago

4 0

Answer:

The answer is option A.

The first graph

Hope this helps you

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The graph of the quadratic function y = ax^2 + bx + c is given.<br> Find a + b + c.

andrey2020 [161]

Answer:

$\frac{145}{24}\approx 6$ ***

Answers may vary depending on the person reading the graph.

It is hard to tell what they think crosses nicely.

For example, I decided that the graph crossed nicely at the following points:

$(0,3)$

$(2,8)$

$(6,5)$

Step-by-step explanation:

I see that the graph crosses at $(0,3)$ , $(2,8)$ , and $(6,5)$ .

The equation $y=ax^2+bx+c$ tells us the $y$ -intercept is $c$ since when $x=0$ we have $y=a(0)^2+b(0)+c=0+0+c=c$ .

The $y$ -intercept for our graph is $3$ . Therefore, $c=3$ .

So far we have the equation:

$y=ax^2+bx+3$ .

Let's enter the other points creating a system of linear equations to solve:

$8=a(2)^2+b(2)+3$

$5=a(6)^2+b(6)+3$

Let's simplify:

$8=4a+2b+3$

$5=36a+6b+3$

Let's subtract 3 on both sides:

$5=4a+2b$

$2=36a+6b$

I choose to solve the system by elimination.

Let's multiply the top equation by -3:

$-15=-12a-6b$

$2=36a+6b$

Now adding the equations results in:

$-13=24a$

Divide both sides by 24:

$\frac{-13}{24}=a$

Now using one of the equations we can find $b$ :

$5=4a+2b$ with $a=\frac{-13}{24}$

$5=4\frac{-13}{24}+2b$

$5=\frac{-13}{6}+2b$

Add 13/6 on both sides:

$5+\frac{13}{6}=2b$

$\frac{30+13}{6}=2b$

$\frac{43}{6}=2b$

Divide both sides by 2:

$\frac{43}{2(6)}=b$

$\frac{43}{12}=b$

So we have the equation:

$y=\frac{-13}{24}x^2+\frac{43}{12}+3$

Let's evaluate $a+b+c$ now:

$\frac{-13}{24}+\frac{43}{12}+3$

$\frac{-13+86+72}{24}$

$\frac{73+72}{24}$

$\frac{145}{24}$

4 0

3 years ago

If f(x) = 5x + 40, what is f(x) when x = -5?<br> 0-8<br> 0.7<br> O 15

Over [174]

Answer:

15

Step-by-step explanation:

f(x) = 5x + 40

…………………………

when x = -5

f(-5) = 5(-5) + 40

= -25 + 40

= 40 - 25

= 15

4 0

2 years ago

IF YOU HELP I'LL MARK AS BRAINLIEST

11111nata11111 [884]

Answer:

A is reflected over the y axis and translated 2 units up and 2 units to the right.

Translate is the math word for slide

7 0

3 years ago

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Solve for m:<br> (-11/6) + m = -2/9<br> M=

ss7ja [257]

Step-by-step explanation:

(-11/6) + m = -2/9

m = -2/9 + 11/6

the last common multiple of 9 and 6 is 18.

so, we are bringing both fractions to .../18.

m = -2×2/18 + 11×3/18 = -4/18 + 33/18 = 29/18

8 0

2 years ago

How do I know an equation is downhill

mr_godi [17]

Answer:

The graph of a linear equation can either run uphill or downhill. The slope is positive when the line is uphill, while the downhill line represents a negative slope. To find the slope, find two coordinates along the line.

8 0

3 years ago

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