Answer:
x=4
Step-by-step explanation:
to find RT, you would do the 60-60-90 rule and you would get 4, x and RT are the same value because of the 45-45-90 rule, so x=4
28:36, I hope this helps if it doesn't then tell me.
Yes it is b because a positive multiplied by a negative is a negative.
It looks like it goes through (0,-3) and (1,2), so the gradient is (change in y)/(change in x) ->
(-3-2)/(0-1) = 5
So y=5x+b
Then as we know it passes the y axis at (0,-3) so b= -3
So we have y=5x-3
