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4 years ago

Please help asap 50 pts

Mathematics

2 answers:

ZanzabumX [31]4 years ago

5 0

The answer is !C! because the axis of symmetry is the imaginary line that passes through the middle of the parabola which is -0.5, the vertex is the maximum or the minimum point which in this case it is the maximum point. since it can't be -0.5, 0.5 because the point is a negative x and y. if you plug in -0.5 to C's equation, -2(-0.5)^2+2(-0.5)-1 you would get f(x)=-0.5 which is the point that y equals Hope this Helps :)!

adoni [48]4 years ago

3 0

The answer is d

hope this helped!!

p.s. if you found this helpful please mark it as brainliest! it would mean a lot to me, thanks!

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Find the distance between the points (2, -9) and (-1, 4).

ollegr [7]

Answer:

A. 13.34

Step-by-step explanation:

This is the formula d=√((x_2-x_1)²+(y_2-y_1)²)

Plug in

d=√(-1-2)² + (4+9)²

d= √9 + 169

d= √178

d= 13.34

6 0

3 years ago

What is the percent of change from 14 to 21

babymother [125]

it can be from 2% to 3% because 7 is the lowest common factor so 14/7=2 and 21/7 is 3.

Hope this helps! :D

7 0

3 years ago

Read 2 more answers

Which phrase best describes the scatterplot below? strong negative correlation strong positive correlation weak negative correla

s344n2d4d5 [400]

*the scatter plot of the question is attached below

Answer:

Strong negative correlation

Step-by-step explanation:

In the scatter plot attached below, as the variable in the x-axis increases, the variable on the y-axis decreases. Thus, if a line of best fit is drawn, it would show a line that slopes downwards to our right. This shows a negative correlation between both variables in the scatter plot.

Also, we also see that the data points represented on the scatter plot are clustered more closely along the slope, showing strong negative correlation.

Therefore, the phrase that best describes the scatter plot is: strong negative correlation.

3 0

3 years ago

if n represent number than write an expression for three times the difference of the number amd six increased by four times the

lorasvet [3.4K]

Let n be the number. The difference of the number and six is n-6. Then three times the difference of the number and six is 3·(n-6). This number 3·(n-6) increased by four times the number n, then

3·(n-6)=4·n.

Solve it:

3·n-3·6=4n,

3n-4n=18,

-n=18,

n=-18.

Answer: n=-18 and expression is 3·(n-6)=4·n.

6 0

3 years ago

Which of the following is the slope intercept form of the equation of this line

love history [14]

Answer:

The slope-intercept form of the equation of this line is:

$y=-x$

Hence, option 'c' is true.

Step-by-step explanation:

From the line equation, let us take two points

(1, -1)

(-1, 1)

Finding the slope between two points

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(1,\:-1\right),\:\left(x_2,\:y_2\right)=\left(-1,\:1\right)$

$m=\frac{1-\left(-1\right)}{-1-1}$

$m=-1$

From the line graph, we can determine the y-intercept by setting x=0 and checking the y-value at x=0

at x=0, y=0

Thus, (0, 0) is the y-intercept

We know that the slope-intercept form of the line equation is

y=mx+b

where

m=slope

b=y-intercept

As we have already determined m=-1 and y-intercept=b=0

so substituting m=-1, b=0 in the slope-intercept form of the line equation

$y=mx+b$

$y=(-1)x+0$

$y=-x$

Thus, the slope-intercept form of the equation of this line is:

$y=-x$

Hence, option 'c' is true.

3 0

3 years ago