Answer:
The gradient = 1.4
The linear equation is y = 1.4x
Step-by-step explanation:
Since the line passes through the origin, the two points that can be identified on the line are (0, 0) and (5, 7)
where x₁ = 0, y₁ = 0, x₂ = 5, y₂ = 7
Find the gradient using the formula:
Substitute x₁ = 0, y₁ = 0, x₂ = 5, y₂ = 7 into the formula above
The point-slope form of the equation of a line is:
Substitute m = 1.4, x₁ = 0, y₁ = 0 into the equation above
The gradient = 1.4
The linear equation is y = 1.4x