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3 years ago

What is the vertex of the function?

Mathematics

2 answers:

zheka24 [161]3 years ago

6 0

Answer:

(4 , -25)

Step-by-step explanation:

that is the procedure above

katrin [286]3 years ago

3 0

the vertex of the parabola is calculated by the formula

$\displaystyle\ ax^2+bx+c\quad ;\quad \boxed{x_0=\frac{-b}{2a} \ \ ;\quad y_0 =ax_0^2+bx_0+c} \\\\x_0=-\frac{-8}{2} =4 \quad ; \ \ y_0 =16-32-9=-25 \\\\\ \ Answer: Coordinates \ \ of \ the \ vertex \ of \ the \ \ parabola \ \ (4;-25)$

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A sum of 6(3x+8)+32+12x in different ways

Lemur [1.5K]

First you have multiply 6 by both 3x and 8
6*3x = 18x
6*8= 48
18x + 48 + 32 + 12x
now combine like terms
18x + 12x = 30x
48 + 32 = 80
so 30x + 80 is your answer

8 0

4 years ago

Which number-line model represents the sum of 1.25+(-0.75)?

SIZIF [17.4K]

Solution:

A few tips...

Tip-1: If "+" and "-" are multiplied, it gives a result of "-".
Tip-2: If "-" and "-" are multiplied, it gives a result of "+".
Tip-3: If "+" and "+" are multiplied, it gives a result of "-".

Changing the sign of the given equation.

1.25 + (-0.75)
=> 1.25 - 0.75 [Sign changes according to tip-1.]

This could only mean that the arrow would go to 1.25 units forward. Then a second arrow will be drawn to go 0.75 units back.

The graph that matches with the above info is Option C.

5 0

2 years ago

PLSS HELP ME!!! question 3x - 4/5= - 1/2 what is the value of x?

Minchanka [31]

Answer:

x = $\frac{1}{10}$

Step-by-step explanation:

Given

3x - $\frac{4}{5}$ = - $\frac{1}{2}$

Multiply through by 10, the lcm of 5 and 2 to clear the fractions

30x - 8 = - 5 ( add 8 to both sides )

30x = 3 ( divide both sides by 30 )

x = $\frac{3}{30}$ = $\frac{1}{10}$

7 0

3 years ago

Write an appropriate direct variation equation if y = 18 when x = 2

Sergeu [11.5K]

Answer:

$y=9x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In this problem we have

y=18 when x=2

Find the value of the constant of proportionality k

$k=\frac{y}{x}$ ----> $k=\frac{18}{2}=9$

therefore

The equation is equal to

$y=9x$

8 0

3 years ago

Which rule can be used to describe the growth of the y vales of the function y=12^x over each interval from x=-1 to x=3?

valentinak56 [21]

The function is $f(x)=12^x$ .

This means that as we get from 1 to 2, we have the following values:

$f(1)=12^1=12$ , and $f(2)=12^2=12\cdot12$ .

Similarly, if we check x=3, we have $f(3)=12^3=12\cdot12\cdot12$ .

We can see that as x changes by 1 (with greater values), y increases by a factor of 12.

Answer: multiply by 12

5 0

3 years ago

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