First, we need to find how far ahead Marshall was. Since he had been biking at 20 mph for one hour, he had gone 20 miles.
Next, we need to find how long it will take Brett to catch up to Marshall. In order to do this, we need to find how much faster Brett is going than Marshall. We do this by subtracting Marshall's speed from Brett's speed.
60 - 20 = 40. So, Brett is catching up to Marshall at 40 mph. Now, we figure out how long it will take for someone going 40 miles per hour to go 20 miles. We find this by dividing 40 miles per hour by 20. This is equal to 1/2 hour. So, it will take Brett 0.5 hours to catch up to Marshall. This is the same as A, so A is the correct answer.
We can check our answer by seeing how far Marshall and Brett will have gone. Marshall will have been biking for 1.5 hours, so we multiply 20 * 1.5 = 30. Marshall went 30 miles.
Brett drove for .5 hours at 60 mph, so he went 30 miles. Since Brett and Marshall went the same distance, our answer is correct.
Answer:
-Use Slope formula first, to find the slope and after you have the slope, use the slope and the first point or coordinate for the point-slope formula:
Slope Formula:
( where the first point is and the second point
Point-slope formula:
1.)
Point-slope form:
2).
Point-slope form:
3).
Point-slope form:
Answer: We don't see the pics
Step-by-step explanation:
(9) The correct Option is (C) 4, -3Explanation:The left hand limit is:
+4 because the line(y=+4) is constant if limit approaches to 2 (from left side of the graph)
The right hand limit is:
-3 because the line(y=-3) is constant if limit approaches to 2 (from the right side of the graph)
So the correct Option is (C) 4, -3
(10) The correct Option is (C) -4
Explanation:
The plus sign in the limit indicates that it is the right hand limit. So we have to approach to 3 from the right side of the graph. When we do that, we see the constant line y = -4. Hence the correct option is (C)
NOTE: Although the question seems complex because there is slope involved but in this particular case, the examiner is concerned about the
right hand limit. If she or he asks the left hand limit(3-minus) then we would take the slope-line.
P.S. Sorry for bit late reply! I thought somebody answered it already! :)
We are given equation of line as
Firstly, we will solve for y
Subtract both sides by Ax
now, we can divide both sides by B
now, we can write it in point slope form of line
so, we can get
we can also write as
.............Answer