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2 years ago

Answer for both and explain B 20+ points

Mathematics

1 answer:

Alexxx [7]2 years ago

6 0

Answer:

Given function:

g(x) = x² - 6x + c

c = 2

Th x-intercept found when g(x) = 0

x² - 6x + 2 = 0

Solve the equation to find the values of x:

x² - 6x + 2 = 0
x² - 6x + 9 = 7
(x - 3)² = 7
x - 3 = ±√7
x = 3 ± √7

The x-intercepts are (3 + √7, 0) and (3 - √7, 0)

c = 10

Solve as above:

x² - 6x + 10 = 0
x² - 6x + 9 + 1 = 0
(x - 3)² = -1

The left side is a square of a number which is always positive, the right side is negative.

It means there is no solution, so no-x-intercepts.

The graph of the function lies above the x-axis.

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What is y+8=-5(x+3) in standard form

Papessa [141]

Answer:

-5x + y = -27

Step-by-step explanation:

Equation: y+8 = -5(x+3)

Standard form is (ax + by = c)

We have to get x and y and their coefficients over to the left side of the equation, and all the single numbers to the right side.

y + 8 = -5 (x + 3)

y + 8 = -5x -15

y = -5x - 27

THE ANSWER IS :

-5x + y = -27

5 0

3 years ago

Help I need this done fast!

wolverine [178]

B

Sorry if I’m wrong...

5 0

3 years ago

Solve the question on the picture if it is wrong

romanna [79]

Given:

Cost of 1 digital song = $1.05

Cost of 2 digital song = $2.10

Cost of 5 digital song = $5.25

To find:

The equation and the cost of 25 downloaded digital songs.

Solution:

Let us take two points (1, 1.05) and (2, 2.10).

Here $x_1=1, y_1=1.05, x_2=2, y_2=2.10$

Slope:

$$m=\frac{y_2-y_1}{x_2-x_1}$

$$m=\frac{2.10-1.05}{2-1}$

m = 1.05

Using point-slope formula:

$y-y_1=m(x-x_1)$

$y-1.05=1.05(x-1)$

$y-1.05=1.05x-1.05$

Add 1.05 on both sides, we get

$y=1.05x$

Here x is the independent variable and c is the dependent variable.

So that substitute x = n and y = c.

$c=1.05n$

The equation is c = 1.05 n.

Substitute n = 25 in the equation.

$c=1.05(25)$

$c=26.25$

The cost of 25 songs is $26.25.

8 0

3 years ago

Using the rotation R, can you create a function R(ABCD) that is equivalent to the reflection of ABCD across both the x-axis and

galben [10]

The reflection over the x-axis is given by:

$R(x,y)\to(-x,y)$

And the reflection over the y-axis is given by:

$R(x,y)\to(x,-y)$

Thus, a function that is equivalent to the reflection of ABCD across both axis would be:

$R(x,y)\to(-x,-y)$

6 0

8 months ago

HHHHHHHelp You like to watch movies at the local cinema. You have two payment options. Option A is to buy a discount card, which

Zinaida [17]

Answer:

After 4 movies it will be equal

Step-by-step explanation:

10x + 160 = 50x

160 = 40x

4 = x

Check:

10x + 160 =

10(4) + 160 =

40 + 160 = 200

50x =

50 x 4 = 200

200 = 200

8 0

2 years ago