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bearhunter [10]
4 years ago
13

Which equation represents a line that passes through (2, –0.5) and has a slope of 3?

Mathematics
2 answers:
VladimirAG [237]4 years ago
8 0
We know, principle equation of line: y= mx + b
Here, m = 3

Calculate the value of b:
-0.5 = 3*2 + b
b = -0.5-6
b = -6.5

Now, substitute their values into the expression:
y = 3x - 6.5

Hope this helps!
Kitty [74]4 years ago
4 0
A slope of 3 means the gradient is 3 so we get y=3x+c as derived from the linear formula. we then sub in x=2 and y=-0.5. this gives us c=-6.5.

The equation would be y=3x-6.5

I think this is right.
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Read 2 more answers
Two figures are shown. EFJL is dialation of ABIK AB has a length of 12 and EF has a length of 3
Dimas [21]

The scale factor of dilation from AB to EF is 0.25

<h3>How to determine the scale factor of dilation?</h3>

The given parameters are:

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From the above parameters, side lengths AB and EF are corresponding sides

This means that:

The scale factor of dilation (k) is

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So, we have

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Evaluate

k = 0.25

Hence, the scale factor of dilation from AB to EF is 0.25

Read more about scale factors at:

brainly.com/question/15891755

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