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kati45 [8]
2 years ago
14

A line has a slope of -2 and passes through the point (1,-2). what is an equation of this line ?

Mathematics
2 answers:
Ket [755]2 years ago
4 0
Y=-2x would be the answer.
Vera_Pavlovna [14]2 years ago
3 0

Answer:

y=-2x

Step-by-step explanation:

we know linear functions can be in slope-intercept form: y=mx+b.

we are given the point (1,-2) so x=1 y=-2 and m=-2 because the slope is -2

so lets plug that into the slope-intercept form

y=mx+b

-2=-2(1)+b  multiply

-2=-2+b   add two on both sides

0=b

so it has the form y=-2x+0 aka y=-2x

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Answer:

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Step-by-step explanation:

The scalar product of a matrix refers to the product of a matrix and a number. The scalar is used to multiply each element in the matrix to get the final vector. In the question the scalar is k which is a constant and the matrix is A.

in the example below 2 is the scalar

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3 years ago
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