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Sever21 [200]
3 years ago
8

WILL GIVE BRAINLIEST! Someone please graph these, I can't graph them.

Mathematics
2 answers:
nadezda [96]3 years ago
8 0

Answer:see attached imageStep-by-step explanation:F(x) = 2x + 5 is a linear graph because the exponent on x is 1.  I tell my students that think of graphs having one less turn/corner that the value of the highest exponent.  so since 2x has a exponent of 1, 1-1 =0 so it has no turns or its a straight line.this has a slope of 2 or 2/1 or up 2 and right 1 from the y intercept which is 5so mark 5 on the y axis and a from there go up 2 and right 1 and make another point.  Join these points and you have your graphand g(x) = (x-5)/2  is its inverse and is found:F(x) = 2x + 5 write it this way y = 2x + 5now swap the x and y    x = 2y - 5solve for yx = 2y + 5- 5       -5 x - 5 = 2y/2        /2 (x-5)/2 = yit can be written as y = x/2 - 5/2and graphed the same way as above with a  1/2 slope and -5/2 y intercept

nadezda [96]3 years ago
4 0

Answer:

see attached image

Step-by-step explanation:

F(x) = 2x + 5 is a linear graph because the exponent on x is 1.  I tell my students that think of graphs having one less turn/corner that the value of the highest exponent.  so since 2x has a exponent of 1, 1-1 =0 so it has no turns or its a straight line.

this has a slope of 2 or 2/1 or up 2 and right 1 from the y intercept which is 5

so mark 5 on the y axis and a from there go up 2 and right 1 and make another point.  Join these points and you have your graph


and


g(x) = (x-5)/2  is its inverse and is found:

F(x) = 2x + 5 write it this way y = 2x + 5

now swap the x and y    x = 2y - 5

solve for y

x = 2y + 5

- 5       -5

x - 5 = 2y

/2        /2

(x-5)/2 = y

it can be written as y = x/2 - 5/2

and graphed the same way as above with a  1/2 slope and -5/2 y intercept

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