Someone please help me with this, im not really good at math and i dont understand this...

Step-by-step explanation:

We need the equation of the line in the form:

where m is the slope of the line and b is the y-intercept.

y-intercept: the point where the line touches the y axis.

In this case that point is 6. So b = 6

Slope:

is the rate of change between the y-coordinate and the x-coordinate on the graph of the line.

To find the slope we need two points where the line crosses, I will take the points:

and

where we name the coordinates as follows:

and use the slope equation:

substituting our values:

and so, gathering the information we find we can define the equation of the line:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

a.)the line for function b is steeper