Question 1126550
looks like the slope is 3.


change in y divided by change in x = 15/5 = 3


y-intercept is -6 (value of y when value of x is equal to 0.


equation should be y = 3x - 6


when x = 0, y = -6
when x = 5, y = 15 - 6 = 9
when x = 10, y = 30 - 6 = 24
when x = 15, y = 45 - 6 = 39


that's your solution.


slope intercept form of the equation of a straight line is y = mx + b


m is the slope
b is the y-intercept


slope is change in y / change in x.


your data fits the equation of y = 3x - 6.


here's a graph of the equation.


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