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3 years ago

Write the equation of the line that contains the following two points (0,-1)(1.3)

Mathematics

1 answer:

MatroZZZ [7]3 years ago

7 0

Answer:

y=4x+1

Step-by-step explanation:

1. Find the slope using the slope formula and the ordered pairs.

Slope formula: y2-y1/x2-x1

3--1/1-0

= 3+1/1-0

= 4/1

Slope=4

2. Use the slope and one of the ordered pairs and put them into point-slope form

Point-slope: y-y1=m(x-x1)

M represents the slope and x1 and y1 represent the values in the ordered pair.

Let's use the pair (0,-1)

y+1=4(x-0)

3. Distribute 4 to x and 0 and subtract 1 from both sides to simplify the equation.

y+1=4x

y=4x-1

4. The equation is y=4x-1, which is written in y=mx+b form.

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3 years ago

What percentage of tickets sold were to seniors?

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Given:

The number of tickets sold to children $=35+87+62=184.$

The number of tickets sold to adults $=56+177+205=438.$

The number of tickets sold to seniors $=32+14+54=100.$

To determine the percentage of tickets sold to seniors we need to determine the total number of tickets sold to each category.

To determine the percentage of tickets sold to seniors:

In order to determine the percentage of tickets sold to the seniors, we divide the tickets sold to seniors by the total number of tickets sold to children, adults, and seniors.

This value is multiplied with 100 to convert it into a percentage.

The number of tickets sold to seniors $=100.$

The total number of tickets sold to children, adults, and seniors $= 184+438+100=722.$

The percentage of tickets sold to seniors $= \frac{100}{722} (100) = 0.1385(100)=13.85\%.$

Rounding this off, we get the value as 13.9%

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3 years ago

Several students were asked how many blocks they walk from home to school each day. The results are shown in the line plot. How

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Answer:

25 students.

Step-by-step explanation:

A line plot is a simple graph that shows relationship among the values in a data using a number line.

From the line plot, each dot represents a student. While the number on the line shows the number of blocks walk each day by each student.

It can be deduced from the line plot that;

Only 1 student walks through 7 blocks, 2 walk through 5 blocks, 8 walk 4 blocks, 5 walk 3 blocks, 5 walk 2 blocks and 4 walk through 1 block to school each day.

So that;

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Therefore, the number of students who took part in the survey is 25.

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