Question

Which is an equation of the line that passes through the points (0, 0) and (1,

4)?
y = x + 1
y = 4x + 1
y = x
y = 4x

Answer 1

slope = m = (4 - 0) / (1 - 0) = 4

y = mx + b

y = 4x + b

substitute (0, 0) to find b

b = 0

y = 4x