I recommend u use the app called photomath. It works a lot.
If you subtract x from each side, it says Y = -x .
That tells you that the slope of the graph is -1, and the y-intercept is zero.
The graph is a straight line, passing through the origin.
It slopes DOWN from left to right, at an angle of 45 degrees.
Answer: This is a function, since it's considered to be able to be made into a word problem
Step-by-step explanation:
It will take him 10 weeks because $15 x 10= $150
Answer:
72 km/h
Step-by-step explanation:
We need to convert units
so:
20 m ----- 1 km -------- 3600 s
1 s ----- 1000 m ----1 h
and solve ot
20 x 1 x 3600 s = 72000 we multiply numerators
1s x 1000 m x 1 h = 1000 we multiply denominators
we divide de results 72000/1000 = 72
