The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.
Step-by-step explanation:
Slope is the ratio of the vertical and horizontal changes between two points on a surface or a line.
If coordinates of any two points of a line are given then the rate of change is the ratio of the change in the y-coordinates to the change in the x-coordinates.
2/3 X 123 = $82
*2/3 of the original price
Answer:
20+0.50x
20 dollar fee, 0.50 per text, x represents an unknown number
Step-by-step explanation:
