How to you graph a linear equation when all they say is y=4 what to do

Mathematics

2 answers:

Elan Coil [88]3 years ago

4 0

A horizontal line that intersects the graph at (0,4)

dybincka [34]3 years ago

3 0

-- Find any point where y=4

-- Find another point where y=4

-- With your ruler, draw a line between the two points.
You have a horizontal line, and every point on it has y=4 no matter what 'x' is.

The equation for every straight line is [ y = mx+b ].

This is the line where (m = 0) and (b = 4).

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Plug in $3$ for $x$

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That means that since a $y$ value is the test score (because that's what the y-axis is labeled), your predicted test score is a 64.

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I hope my answer has come to your help. God bless you and have a nice day ahead!

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2 years ago

Find the equation in standard form of the line with slope

Serhud [2]

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 5}}\quad ,&{{ 7}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{7}{2}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-7=\cfrac{7}{2}(x-5)\implies y-7=\cfrac{7}{2}x-\cfrac{35}{2}
\\\\\\
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3 years ago

A salesperson is paid $140 per week plus 10% commission on her weekly sales of x dollars. Find a linear function that represents

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Her weekly sales is X dollars

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Total commission is 0.10X ( 10% times weekly sales)

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sweet-ann [11.9K]

Use x to represent “a number”
1x=10-2x

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3 years ago