How to do it this problem thing yes hurry

Slope: 1

Y-int: 9

Step-by-step explanation:

In the equation for a linear equation (y = mx + b) m is the slope and b is y-int.

In this equation : y = x + 9, m is the coefficient before the x (1), and the y-int is the 9

m = 1, b = 9

Step-by-step explanation:

y = x + 9 could be (but doesn't have to be) rewritten as y = 1x + 9.

Comparing this to                                                               y = mx + b

quickly reveals the slope:  m = 1, and the y-intercept:  b = 9   (or 0, 9)

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s