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Tanya [424]
4 years ago
10

Please help me with number 5 it’s been due

Mathematics
1 answer:
Serjik [45]4 years ago
8 0

Answer:

The equation is;

y = 1/2x + 7

Step-by-step explanation:

Here, we want to write in the slope-intercept form, the equation that goes through the two points

The general form of this is;

y = mx + b

where m is slope and b is the y-intercept

we start by calculating the slope of the line

m = (y2-y1)/(x2-x1)

m = (8-6)/(2-(-2))

m = 2/4 = 1/2

So we have ;

y = 1/2x + b

To get b, we use any of the two pints

8 = 1/2(2) + b

8 = 1 + b

b = 8-1

b = 7

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Is this relation a function by using straight line test
Drupady [299]

Answer:

No

Step-by-step explanation:

Graph all points. They do not make a line.

6 0
3 years ago
Identify the slope and y-intercept for each equation below.<br> y=2x-5
sammy [17]

Answer:

Slope=2

y-intercept=-5

Step-by-step explanation:

This equation is in the form of y=mx+b

m is the slope and b is the y-intercept.

Therefore, the slope is 2 and the y-intercept is -5

5 0
3 years ago
Read 2 more answers
A researcher wishes to estimate the number of households with two cars. How large a sample is needed in order to be 99% confiden
solmaris [256]

Answer:

Sample size n = 1382

so correct option is D) 1382

Step-by-step explanation:

given data

confidence level = 99 %

margin of error = 3%

probability = 25 %

to find out

How large a sample size needed

solution

we know here P = 25 %

so 1 - P = 1 - 0.25

1 - P  = 0.75

and we know E margin of error is 0.03 so value of Z for 99%

α = 1 - 99%   = 1 - 0.99

α  = 0.01

and  \frac{\alpha}{2} = \frac{0.01}{2}

\frac{\alpha}{2}  = 0.005

so Z is here

Z_(\frac{\alpha}{2}) = 2.576

so

sample size will be

Sample size n =  (\frac{(Z_(\frac{\alpha}{2})}{E})^2 * P * (1-P)

put here value

Sample size n = (\frac{2.576}{0.03})^2 * 0.25 * 0.75

Sample size n = 1382

so correct option is D) 1382

3 0
4 years ago
What makes the value of k true
Igoryamba
When you multiply exponents like in the problem, you add them together.

So to find the answer, just subtract the final exponent of 'a' from the original.

6-2=4

The answer should be 4
7 0
3 years ago
When writing a number in scientific notation, how many digits should be to the left of the decimal point?
Illusion [34]
B. You can only have one becase your answer has to be greater then one and less then 10. So it cant be 1 or 10 it has to be 2-9
8 0
3 years ago
Read 2 more answers
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