Due to a lack of context, I’m guessing you want the equation of this line. If you go back to the equation y = mx + b, m represents SLOPE, and b represents the y-int (0, b).
As the slope is -2 and the y intercept is (0,0), the line’s equation would be y = -2x + 0, or simply y = -2x.
The number is 125 and the equation is 0.8x = 100
Step-by-step explanation:
80% of x is equal to 100.
Write an equation that shows the relationship of 80%, x, and 100
80% = 0.8
0.8x = 100
x = 100/0.8
x = 125
The number is 125 and the equation is 0.8x = 100