Which of the following is the slope between the two points (-5, -1) and (6, -4)?
The slope between two points is equal to the difference in their y values minus the difference in their x values - \[\Delta y / \Delta x\] It doesn't matter which point you use first, but you need to be consistent. So I'll use the point (6, -4). The x value of this point is 6, the y value is -4. So the slope is then: Change in y = -4 - -1 = -4+1=-3 Change in x = 6 - -5 = 6+5=11 So the slope is -3/11.
Consider the line that passes through the points (4, -3) and (2, -1). Below are two different equations. Identify the true statement concerning both equations. Equation #1 Equation #2 y - 3 = -1(x + 4) y - 1 = -1(x + 2)
@vinnv226
^ I'm sorry, in my first reply I said "minus" when I meant "divided by" in the first line ^
ohh okay ")@vinnv226
Could you explain what this new question is looking for? Is there anything more to the problem? I would guess you're being asked to find the equation of the line that passes through those two points but I'm a little confused by the wording you used.
Thatss all it tells me to do :oo
@vinnv226
I'm not quite sure what the question is asking. If you distribute and solve each of those two equations you'll find that they, in fact, are the same graph.
im i lovejusti25 i got banned lmao @vinnv226
Which of the following is the slope between the two points (1, 5) and (6, 4)? @vinnv226
This is solved the same way as the original problem, that is, by dividing the change in y by the change in x. Change in y = 4-5=-1 Change in x= 6-1=5 So the slope is -1/5.
can you help with more ? I have 3 tests to take that depend on my grade -.- @vinnv226
Choose the equation below that represents the line that passes through the point (2, 4) and has a slope of 3.
@vinnv226
One way to represent a line is the following equation: \[y - y _{1} = m(x-x_{1})\] Where x1 and y1 are the coordinates of a point on that line, and m is the slope. So, since you know the slope is 3 and a point on the line is (2,4), you can plug in m=3, x1=2 and y1=4, and get: \[y-4 = 3(x-2)\] And now you just need to simplify.
idk how @vinnv226
Well, often when we simplify, we get it in a y= form. So, on the right side, we'll distribute the 3: \[y-4=3x-6\] And then we add 4 to both sides, and we're done: \[y=3x-2\]
Choose the slope-intercept equation of the line that passes through the point (6, 4) and is parallel to y =1/3 x - 3. @vinnv226
For two lines to be parallel, they must have the same slope. So the slope of our answer is going to be 1/3. Then, since we have the point (6,4) we can use the same equation we used above and plug in: \[y-4=(1/3)(x-6)\]Try practicing simplifying these types of equations to get them in y= forms.
its hard @vinnv226
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