What is a correct equation for the line passing through the point (-2,1) and having slope m=1/2

Step-by-step explanation:

The point-slope form of an equation of a line:

m - slope

We ahve the slope m = 1/2 and the point (-2, 1). Substitute:

- point-slope form

Covert to the slope-intercept form (y = mx + b):

         use the distributive property

         add 1 to both sides

  - slope-intercept form

Convert to the standard form (Ax + By = C):

    multiply both sides by 2

       subtract x from both sides

        change the signs

  -  standard form

Convert to the general form (Ax+By+C=0):

       add 4 to both sides

  - general form

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step-by-step explanation:

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)