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3 years ago

Help me with answering this question

Mathematics

1 answer:

Ksju [112]3 years ago

6 0

Answer:

x-intercept is (-4,0) and the y-intercept is (0,-2

Step-by-step explanation:

There are 2 ways to find the y-intercept. One way is to put the equation in slope-intercept form. However, there is a more efficient way as well.

Another way to do it is to plug 0 in for x and y. The x-intercept will have the coordinate of (x,0). So to find the x-intercept you can plug in 0 for y and solve for x. To find the y-intercept do the opposite and plug 0 in for x.

So, first, plug 0 in for y

x+2(0)=-4
x+0=-4
x=-4

Then plug in 0 for x

0+2y=-4
2y=-4
y=-2

Therefore, the x-intercept is (-4,0) and the y-intercept is (0,-2).

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Marilyn purchased a book that had a regular price of $19. She used a coupon that reduced the regular price by 15%. Sales tax for

Alika [10]

Answer:

2.80

Step-by-step explanation:

The discount is the regular price times the discount

discount = 19 *15%

discount = 2.85

The new price is the regular price minus the discount

new price = 19-2.85

=16.15

Now she has to pay the sales tax

tax = new price * tax rate

tax= 16.15 * 6.5%

= 16.15 *.065

=1.05

We add the tax to the new price to get the final price

final price = new price+tax

= 16.15 +1.05

=17.20

She pays with a 20 dollar bill

Change = payment - final price

=20.00 - 17.20

= 2.80

4 0

3 years ago

(p+q)^5 do that for 100 points

jonny [76]

Answer:

p^5 + q^5

Step-by-step explanation:

(p + q)^5

p^5 + q^5 Distribute the fifth power to the letters in the paranthesis

5 0

3 years ago

Read 2 more answers

If you have 24 months to save $4,220 how much would you have to save each month

gulaghasi [49]

Answer:

$175.83

Step-by-step explanation:

All you have to do is 4220 divided by 24 = $175.83

4 0

3 years ago

The function f(x) = (x - 4)(x-2) is shown.

ella [17]

Answer:

the range for f(x) = (x-4) (x-2) is [-1,∞)

Step-by-step explanation:

all real numbers greater than or equal to -1

4 0

2 years ago

HELP RIGHT NOW PIZZZ = FASTEST ANSWER BRAINLIEST AND I WILL THANK U

Nuetrik [128]

Answer:

1) The slope of the function $g(x)$ is $0$ and the slope of the function $f(x)$ is $-1$ .

2) The negative slope of the function $f(x)$ shows that it is the line is increasing and the slope $0$ of the function $g(x)$ shows that the line will always have the same y-coordinate.

3) The slope of the function is $f(x)$ is greater than the slope of the function $g(x)$ .

Step-by-step explanation:

For this exercise you need to know that the slope of any horizontal line is zero ( $m=0$ )

The slope of a line can be found with the following formula:

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

You can observe in the graph of the function $g(x)$ given in the exercise, that this is an horizontal line. Then, you can conclude that its slope is:

$m=0$

The steps to find the slope of the function $f(x)$ shown in the table attached, are the following:

- Choose two points, from the table:

$(0,3)$ and $(4,-1)$

- You can say that:

$y_2=-1\\y_1=3\\\\x_2=4\\x_1=0$

- Substitute values into the formula $m=\frac{y_2-y_1}{x_2-x_1}$ :

$m=\frac{-1-3}{4-0}$

- Finally, evaluating, you get:

$m=\frac{-4}{4}\\\\m=-1$

Therefore:

1) The slope of the function $g(x)$ is $0$ and the slope of the function $f(x)$ is $-1$ .

2) The negative slope of the function $f(x)$ shows that it is the line is increasing and the slope $0$ of the function $g(x)$ shows that the line will always have the same y-coordinate.

3) The slope of the function is $f(x)$ is greater than the slope of the function $g(x)$ .

8 0

3 years ago