Respuesta :
Answer:
y = -7x - 2
Step-by-step explanation:
To write this into an equation, we need to use the y = mx + b formula.
y = mx + b
-30 = -7(4) + b <--- Substitute 4 as x, and -30 as y.
-30 = -28 + b
+ 28 +28 <--- Add 28 on both sides of the equation.
-2 = b
Final equation:
y = -7x - 2
Answer:
- equation: y = -7x - 2
Step-by-step explanation:
using the formula: y - y1 = m ( x - x1 )
: y - -30 = -7 ( x - 4 )
: y + 30 = -7x + 28
: y = -7x + 28 - 30
: y = -7x - 2