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anyanavicka [17]
3 years ago
12

SSSSSSSSSSSSSSSSSSSSSSSSSSss Which of the following equations is graphed as a vertical line?

Mathematics
1 answer:
Marysya12 [62]3 years ago
8 0
Vertical line is x=0
You might be interested in
This table models a linear function. x −8 −4 4 8 y −3 0 6 9 Enter the coordinates of the y-intercept in the boxes.
adell [148]

Answer:

y-intercept is 3

Step-by-step explanation:

We are given table

x: -8  -4  4  8

y: -3   0   6  9

We can select any two points

x_1=-8,y_1=-3

x_2=-4,y_2=0

Firstly, we will find slope

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

now, we can plug values

m=\frac{0+3}{-4+8}

m=\frac{3}{4}\quad

now, we can use point slope form of line

y-y_1=m(x-x_1)

we can plug values

y+3=\frac{3}{4}(x+8)

now, we can solve for y

y=\frac{3}{4}x+3

For finding y-intercept , we can plug x=0

y=\frac{3}{4}\times 0+3

y=0+3

y=3

So,

y-intercept is 3

8 0
3 years ago
A particular car gets fuel mileage of 36 mpg in the city and 12% more on the highway.
liq [111]
40.32 mpg, because 36x.12=4.32 + 36= 40.32
5 0
3 years ago
Janna and Anthony walk home from school on Monday Wednesday and Friday their mother picks them up on Thursday and they ride the
nikklg [1K]

Answer: 3/5

Step-by-step explanation:

Out of 5 school days, Janna and Anthony walk home on Monday, Wednesday and Friday.

This means they walk home on 3 days out of 5.

The fraction of time they walk home from school is;

= 3/5

6 0
2 years ago
4x 1 whole 1/2 <br>.............​
pickupchik [31]

Answer:

I believe its 4

Step-by-step explanation:

4 0
3 years ago
Computer output from a regression analysis is provided. Coefficients: Estimate Std. Error t value p-value (Intercept) 7.2960 14.
Crazy boy [7]

Answer:

Step-by-step explanation:

Hello!

You need to test the hypothesis that the slope of the regression is cero.

I've run in the statistic software the given data for Y and X and estimated the regression line:

Yi= 7.82 -1.60Xi

Where

a= 7.82

b=-1.60

Sb= 3.38

The hypothesis is:

H₀: β = 0

H₁: β ≠ 0

α: 0.05

This is a two-tailed test, the null hypothesis states that the slope of the regression is cero, this means that if the null hypothesis is true, there is no linear regression between Y and X.

The statistic for this test is a Student-t

t= <u>  b - β  </u> ~t_{n-2}

      Sb

The critical values are:

Left: t_{n-2; \alpha /2} = t_{2; 0.025} = -4.303

Right: t_{n-2; \alpha /2} = t_{2; 0.975} = 4.303

t= <u>-1.60 - 0 </u>= -0.47

      3.38

the p-value is also two-tailed, you can calculate it by hand:

P(t ≤ -0.47) + (1 - P(t ≤ 0.47) = 0.3423 + (1 - 0.6603) =0.6820

With the level of significance of 5%, the decision is to not reject the null hypothesis. This means that the slope of the regression is equal to cero, i.e. there is no linear regression between the two variables.

I hope this helps!

6 0
3 years ago
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