Slope and y-intercept, step by step
A line carries two numbers and they mean different things: one says how fast it climbs, the other says where it starts.
The question
y = 8x
y = 8x
y = 8x
m=8
y = 8x
m=8
- A line written this way carries two facts: how much y moves for each step of x, and where it already is when x is 0. The slope is the first.
- The number multiplying x is 8, so each step of x moves y by 8. There is no constant, so the line starts at 0.
- So m = 8.
How it works.
- 01
A line written this way carries two facts: how much y moves for each step of x, and where it already is when x is 0. The slope is the first.
- 02
The number multiplying x is 8, so each step of x moves y by 8. There is no constant, so the line starts at 0.
- 03
So m = 8.