Question

Write an equation for the line through (3.5,-2.3) x intercept 5.1

Answer 1

Slope = (-2.3 - 0)/(3.5 - 5.1) = -2.3/-1.6 = 1.4 
The line's equation is 
y - 0 = 1.4(x - 5.1) 
y = 1.4x - 7.1