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2 years ago

13

If f(x) = x² - 2x, find: f(5) = [?]

2 answers:

Bumek [7]2 years ago

4 0

Step-by-step explanation:

A function f is defined by f (x) = 2x - 5. Write down the values of In mathematics, a function means a correspondence from one value x of the first set to another value y of the second set. NCERT Solutions Class 11 Math's Chapter 2 Exercise 2.3 Question 3 A function f is defined by f (x) = 2x - 5.

zhannawk [14.2K]2 years ago

3 0

Answer:

$15$

Step-by-step explanation:

if $f(x) = x^2 -2x$ , then that means that $f(5) = (5)^2 - 2(5)$ which equals $15$ .

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Which function has two x-intercepts, one at (0, 0) and one at (4, 0)?

muminat

Answer:

y = (x - 2)² - 4

Step-by-step explanation:

I graphed the points on the graph below and found a function that had those points as solutions.

If this answer is correct, please make me Brainliest!

8 0

3 years ago

Y = 7/8u + 9, solve for u

vivado [14]

Answer:

$u=\frac{8y-72}{7}$

Step-by-step explanation:

Flip the equation.

$\frac{7}{8}u+9=y$

Add -9 to both sides

$\frac{7}{8}u+9(-9)=y(-9)$

$\frac{7}{8}u=y-9$

Divide both sides by 7/8

$u=\frac{8y-72}{7}$

hope this helps

3 0

3 years ago

Liam had a container of oatmeal that contained 5 and one-half cups of oatmeal. Liam ate StartFraction 4 over 9 EndFraction cup o

Solnce55 [7]

3 and two half I hope you get a good answer

4 0

3 years ago

Read 2 more answers

If is valid : a ²- b ² = 117 and a - b = 3, then what is the value of the expression a + b ?

juin [17]

Answer:

d is the correct answer from give questions

7 0

3 years ago

Pls help me, I really dont understand

Stella [2.4K]

Answer:

-2.5x-.5

$y=\frac{2}{3}x-1$

draw the dotted line (3/7)x-3 and shade below it

Step-by-step explanation:

First, we need the slope

Use the slope formula:

$\frac{Y_2-Y_1}{X_2-x_1}=\frac{2-(-8)}{-1-3}=\frac{10}{-4}=-2.5$

so we have

y= -2.5x+b

Solve for b by plugging in coordiantes

-8= -2.5(3)+b

-8= -7.5+b

b= -.5

Put it together and get -2.5x-.5

2.)

A line is parallel to another line if they have the same slope (and different y intercepts)

So in the formula y=mx+b we knowe that m= 2/3

Now it's just a matter of solving for B

plug in the required coordinate to do this

-1=(2/3)*0+b

-1= b

Put it all together to get

$y=\frac{2}{3}x-1$

3.)

put this into slope intercept form

3x-7y>21

3x-21 > 7y

(3/7)x-3 >y

To graph this just draw a dotted line with the equation (3/7)x-3 and shade everything below it (use de_smos if you're stuck)

7 0

3 years ago