What is the slope of y= 4.5x

Slope is 4.5 or 9/2

Step-by-step explanation:

Step 1: Compare the equation with the slope intercept form equation y = mx + b where m is the slope and b is the y-intercept.

y = 4.5 x

∴ Slope, m = 4.5 or 9/2

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct