The diagram below shows a model of a staircase in which all the riser heights are equal and all the tread lengths are equal.



A carpenter wants to build a staircase in which each riser has a height of 6 inches and each tread has a length of 11 inches.

Which of the following expressions is equal to the stair angle?

a

explanation:

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .