Which equation represents a line that passes through (–2, 4) and has a slope of startfraction 2 over 5 endfraction.? y – 4 = (x + 2) y + 4 =(x – 2) y + 2 = (x – 4) y – 2 =(x +4)

The equation representing the line is:

Recall:

Given:

The equation in point-slope form of any line is:

a = -2

b = 4

Therefore, the equation that represents the line with a slope of 2/5 and passes through the point (-2, 4) is:

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For this case we have that by definition, the point-slope equation of a line is given by:

Where:

It is a point through which the line passes

m: It is the slope of the line

According to the data we have to:

Substituting:

Finally, the equation of the line is:

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: