X Y

Question

0 3
1 8
2 13
3 18
What is the equation of the line that contains the values given in the table?

A y = 5x + 3
B y = 5x − 37
C y = 5x − 87
D y = 1/5x + 63/5

Answer 1

y= m x + b
slope = 5/1 = m
y = 5 x + b
18 = 5 (3) + b
b = 3
so
y = 5 x + 3

check
3 = 3 (0) + 3
yes, caramba !

Answer 2

find the slope and the y-intercept