PLEASE HELP 49 POINTS! 49 POINTS! explain your answer, thank you so much!!!!!!!!

Mathematics

2 answers:

Sloan [31]4 years ago

3 0

Answer:

y+2=1/2(x-8) or y+4=1/2(x-4)

Step-by-step explanation:

Okay, so point slope form is y-y1=m(x-x1). So you substitute y1 with -2 or 8 and x1 with 8 or 4.

Slope is (-2-(-4))/(8-4), which is 2/4, or 1/2. Plug that into m.

statuscvo [17]4 years ago

3 0

Answer:

y+2 = 1/2(x-8)

Step-by-step explanation:

We need to find the slope

m = (y2-y1)/(x2-x1)

= (-4--2)/(4-8)

= (-4+2)/(-4)

= -2/-4

= 1/2

We know the slope and we know a point, so we can use point slope form

y-y1 = m(x-x1)

y--2 = 1/2(x-8)

y+2 = 1/2(x-8)

If we had used the other point

y--4 = 1/2(x-4)

y+4 = 1/2(x-4)

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Which table represents a linear function?

mart [117]

Well, a linear function is proportional, a straight line (on a graph). And the numbers must not have the same answer. For instance, if the X input is 5, and the Y output is 7. And then another X input is 5, and the Y output is 8, that's non-linear.

So, the Answer would be the third graph. This is because the X values are steadily increasing, and so are the Y values.

For the X and Y values, for each time X increases by 1, Y increases by -8. This is, linear because both sides are constantly and evenly increasing.