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2 years ago

How do I find out how to work out , y=mx+c ???

Mathematics

2 answers:

hjlf2 years ago

3 0

Y=mx+c isn't an equation to solve. It's the slope-intercept formula for graphing lines.
y and x are the variables, and m and c are the constants.
As an example, the line y=4x+2 looks like this:

zheka24 [161]2 years ago

3 0

-assuming you meant y=mx+b-

To find slope, you first pick 2 coordinates and plug them into y2-y1 divided by x2-x1. After that you can pick a coordinate and multiply by the slope you got and if necessary, add a certain number to get the y-coordinate. Then, plug your values into y=mx+b with m for slope and b for y-intercept. IF YOU ARE JUST GIVEN AN EQUATION, change the equation into slope intercept form and just answer for m being the slope and b being the y-intercept.

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Martine’s town is building a volleyball court based on a scale drawing that is 40cm to 80cm and uses the scale 1cm:22.5cm write

never [62]

Answer:

$y=22.5x$

Step-by-step explanation:

we have that

The scale drawing is

$\frac{1}{22.5}\frac{cm}{cm}$

we know that

Using proportion find out the actual dimensions of the volleyball court

Let

x -----> drawing court lengths in cm

y ----> court lengths in cm

For x=40 cm

$\frac{1}{22.5}\frac{cm}{cm}=\frac{40}{y}\frac{cm}{cm}\\\\y=40*22.5\\\\y=900\ cm$

For x=80 cm

$\frac{1}{22.5}\frac{cm}{cm}=\frac{80}{y}\frac{cm}{cm}\\\\y=80*22.5\\\\y=1,800\ cm$

Find the equation for the proportional relation ship between drawing court lengths x in centimeters and court lengths in y centimeters

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

For x=40 cm, y=900

substitute

$k=y/x$ -----> $k=900/40=22.5$

The equation is

$y=22.5x$

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2 years ago

A man is hiking in Death Valley. He starts at an elevation of 65 feet above sea level and descends to an elevation 30 feet below

kati45 [8]

Answer:

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Step-by-step explanation:

In Death Valley, hiking man starts at 65 feet above sea level and then descends 30 feet below sea level. The man needs 65 feed to reach sea level, then from there he travels 30 feet more.

Thus he travels the sum of this distances, i.e 65+30 = 95 feet

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ankoles [38]

8:4 I’m pretty sure I got this correct

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MakcuM [25]

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Step-by-step explanation: