Can someone tell me how to figure this question out? i don''t want the answer : ) write the equation of the line containing the point (-2, –7) and having a slope of 3 in slope-intercept form.

y = 3x - 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

here slope m = 3

y = 3x + c ← is the partial equation

to find c substitute (- 2, - 7 ) into the partial equation

- 7 = - 6 + c ⇒ c = - 7 + 6 = - 1

y = 3x - 1 ← equation in slope- intercept form

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33

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