Answer:
The six represents the slope
The four represents the intercept
454 tiles
Explanations:
The tile pattern is represented by the equation:
y = 6x + 4.......................(1)
The equation takes is a linear equation of the form:
y = mx + c..........................(2)
where m is the slope
and c is the intercept
Comparing the two equations:
m = 6
c = 4
The six represents the slope
The four represents the intercept
In the 75th figure, x = 75
Substitute x = 75 into the equation (1)
y = 6(75) + 4
y = 454
There will be 454 tiles