PLEASE HELP!!
Determine the equation for the line of best fit to represent the data.

scatter plot with points going up from about zero comma negative 3 to the right to about 7 comma zero
A) y equals three sevenths times x minus 3
B) y equals negative three sevenths times x minus 3
C) y equals seven thirds times x minus 3
D) y equals three sevenths times x plus 3

A) y equals three sevenths times x minus 3

Step-by-step explanation:

We know that our graph is a line that goes through the points (0, - 3) and (7 , 0)

A line equation has the form:

y = a*x + b

where a is the slope and b is the y-intercept.

to find the slope, we can use the next equation.

For a line that goes trough the points (x1, y1) and (x2, y2), the slope is:

a = (y2 - y1)/(x2 - x1)

Then, in this case the slope is

a = (0 - (-3))/(7 - 0) = 3/7

Then our equation is:

y = (3/7)*x + b

to find the value of b, we can took any of the points we have and replace the values, lets use (7,0) this means that x = 7 and y = 0

0 = (3/7)*7 + b = 3 + b

b = -3

our equation is:

y = (3/7)*x - 3

The correct option is A.

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

5+2x=a

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