Find gradient by changing form of equation: y = 2/3x + 4. Gradient is 2/3.
Find y intercept of other line by substituting the coordinates: -8/3
Use information to write out equation of line: y= 2/3x - 8/3
Convert to standard form: -2x + 3y = 8.
Hope this helps :)
Tell us the value of the variable to solve
The graph is attached btw
1. 15.99+(2.75x)
2. 15.99+(2.75 * 7)
= 15.99+19.25
=35.24