Question

Find an equation of the line that passes through the given points. (Let x be the independent variable and y be the dependent variable.)
(2, 8) and (3, 15)

Answer 1

Okay first find the gradient/slope:

(15-8)/(3-2) = 7/1= 7

Eqn of line y= 7x +c where c is a constant, now we got to find c

Substitute any point, (2,8) into the eqn.

8 = 7*2 +c
8= 14 +c
c = -6

Thus the eqn is y = 7x -6

Answer 2

wow this was really simple i made it so difficult. thank you!