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3 years ago

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Which of the following coordinates exists on the line y=2x+4? A. (-3,-2). B. (-1,3). C. (1,5). D. (2,4)

2 answers:

hjlf3 years ago

8 0

A. (-3,-2)~~~~~~~~~~~~~ APX

Alchen [17]3 years ago

3 0

Solution is in the picture

Good luck:)

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What is the following is the solution to the equation 25^(z+2) = 125

maksim [4K]

First, rewrite the equation $25^{z+2} = 125$ with the base equal to 5. Note that:

$25=5^2;$
$125=5^3;$
$25^{z+2}=(5^2)^{z+2}=5^{2\cdot (z+2)}.$

Then

$5^{2\cdot (z+2)}=5^3.$

Since the bases are equal, you have that powers are equal too:

$2\cdot (z+2)=3,\\ \\2z+4=3,\\ \\2z=3-4,\\ \\2z=-1,\\ \\z=-\dfrac{1}{2}.$

Answer: $z=-\dfrac{1}{2}.$

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4 years ago

Which point slope form equations could be produced with the points (3,2) and (4,6)

Anika [276]

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of a line given two points first find the slope of the line and use the formula

y - y1 = m( x - x1) to find the Equation of the line using any of the points given

Slope of the line using points

(3,2) and (4,6) is

$m = \frac{6 - 2}{4 - 3} = \frac{4}{1} = 4$

So the equation of the line using point

( 3 , 2 ) and slope 4 is

<h3>y - 2 = 4( x - 3)</h3>

Hope this helps you

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3 years ago

If A=(0,0) and B=9(2,5), what is the approximate length of AB

Serhud [2]

Answer:

(x2 – x1)2 + (y2 – y12))d = √((5 – 0)2 + (2 – 0)2d = √(25 + 4) = √(29) ≈ 5.385aa

Step-by-step explanation:

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2 years ago

Please actually do it im gonna k m s if someone answers this with a link again

Elena L [17]

Answer:

Top one, least to greatest:

$-\sqrt{54}$ , $-\frac{3}{9}$ , $\frac{9}{5}$ , $\pi$ , 6.6, $\sqrt{75}$

Bottom one, greatest to least

9.6, $\sqrt{34}$ , $\frac{9}{9}$ , -4.2, $-7\frac{2}{5}$ , $-\sqrt{85}$

8 0

3 years ago

Read 2 more answers

What is the rate of change and initial value for the linear relation that includes the points shown in the table?

Wittaler [7]

Answer:

Initial value $12$ , rate of change: $-2$

Step-by-step explanation:

Step 1

Find the rate of change

we know that

In a linear equation the rate of change is equal to the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(1,10)\ B(2,8)$

Substitute the values

$m=\frac{8-10}{2-1}$

$m=-2$ ----> rate of change

Step 2

Find the initial value

The equation of the line into slope-point form is equal to

$y-y1=m(x-x1)$

Substitute

$y-10=-2(x-1)$

$y=-2x+2+10$ $y=-2x+12$

The initial value is the value of y when the value of x is equal to zero (is the y-intercept)

$y=-2*0+12=12$ ----> initial value

7 0

3 years ago

Read 2 more answers