What division problem can be represented using the number line?

Mathematics

1 answer:

nexus9112 [7]2 years ago

8 0

A or b depending on wich way your moving

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The price of an Item yesterday was $160. Today, the price rose to $248. Find the percent increase.

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2 years ago

Slope intercept form for (2,3) and (-1,6)

olga_2 [115]

Answer:

the answer is $y=-x+5$

Step-by-step explanation:

I hope this helps! :)

Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.

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2 years ago

What is an equation of the line that passes through the points

zubka84 [21]

Answer <u>(assuming it can be in slope-intercept form): </u>

y = x - 5

Step-by-step explanation:

1) First, find the slope of the equation. Use the slope formula, $m = \frac{y_2-y_1}{x_2-x_1}$ , and substitute the x and y values of the given points into it. Then, solve:

$m = \frac{(2)-(1)}{(7)-(6)} \\m = \frac{2-1}{7-6} \\m = \frac{1}{1} \\m = 1$

2) Now that we know the slope and at least one point the line crosses through, we can write an equation of the line in point-slope form, or $y-y_1 = m (x-x_1)$ . Substitute $m$ , $x_1$ , and $y_1$ for real values.

Since $m$ represents the slope, substitute 1 for it. Since $x_1$ and $y_1$ represent the x and y values of a point the line intersects, use any one of the given points (either one is fine, either way the equation will represent the same line) and substitute its x and y values into the equation. (I chose the point (6, 1), as seen below.) Finally, isolate y to put the equation in slope-intercept form.

$y-1 = 1(x-6)\\y -1 = x-6\\y = x -5$