how do you read a graph if it changes?

Question

the equation is y=2/5x+3 and its graphed in the graphs below, but it says which graph shows the result of changing the 3 in the equation to -1? please help!

Answer 1

This equation is in the form y=mx + b where  m = Slope and b = y intercept. If we change the 3 in the equation we are changing the b part of the equation which is the y intercept. This will shift the y intercept where the line crosses the y axis from 3 to -1. The slope remains the same so the entire line shifts down 4 spots.

Answer 2

what is a line graph

Answer 3

example a standard form of an equation

Answer 4

express this equation in standard form

-6x+9y=36

Answer 5

i do not understand how to do using the x y table

Answer 6

Graph the equestion : y = x + 2. Choose your values of x.

Answer 7

Graph

x+2y=5

      y=2x

Answer 8

y=x-3

y=-x=1

Answer 9

Write the function as a set of ordered pairs. Give the domain and range of f.

f(a)=q, f(b)=p, f(c),-r, f(d)=q

Answer 10

how do you solve 4x to the 2nd power =14x + 8 by factoring

Answer 11

 

The equation of a curve is ln(xy) − y

3 = 1.

(i) Show that dy/dx=y/x(3y3 − 1)

 

(ii) Find the coordinates of the point where the tangent to the curve is parallel to the y-axis, giving

each coordinate correct to 3 significant figures

Answer 12

12333333333333333333+214684596

Answer 13

y=2/5x+3

x=-7,5

Answer 14

Id Code send me

Answer 15

what are the coordinates of the point (2,1)

Answer 16

How do you plot a single digit number when all the other numbers are double digit? as an ex: 8, 11,12,22,23,23,33,34,35

Answer 17

Which type of graph would you use to show the kilograms of food consumed and kilograms of food wasted in the school cafeteria each day? circle graph pictograph double bar graph stem-and-leaf plot

Answer 18

stem and leaf plot

Answer 19

i dont know, but i think that the expert will read    the graph if it change.

 

Answer 20

y=4x-5/x+2graph

Answer 21

7/9 rotation counterlockwise

Answer 22

 Prove That There Is No Simple Graph On Four Vertices,three Of Which Have Degree 3 And The Remaining Vertex Has Degree 1

 

Answer 23

hi how are you everybody? Today you are going to learnig about how to find math  problems? 

 

Answer 24

stem    leaf

0           3, 3, 3, 7, 8, 9

1            1, 1, 3, 4, 5, 7, 8, 9

2            1, 3, 3, 5, 7, 8, 9

Answer 25

y=3x

Answer 26

(-1, 1) (-5,2) graph coordinate HELP me do this c:

Answer 27

Draw a “line graph” showing cumulative planned, actual costs and cumulative earned value

Answer 28

x

2

+

y

2

+

6

y

–

27

=

0

.

Answer 29

8x+5y=13

3x-y=2

use in elimination by addition/subtraction with checking and make a graph

Answer 30

Let y0=(2/5)x, y1=(2/5)x+3 and y2=(2/5)x-1

The graph of y0=(2/5)x is a straight line that passes thru the origin, O(0,0), of the coordinate plane, and goes upwards as x increases because the coefficient of x, the slope of line y0, is positive(=2/5).   Slope is the ratio of coordinate changes, y to x or y/x, so this equation y0 indicates that y goes 2 units up as x goes 5 units right, positive.

y1=(2/5)x+3 is y0=(2/5)x shifted 3 units upwards, so line y1 intercepts y-axis at y=3.   The slope of y1 is equal to that of y0(=2/5), so line y1 is parallel to line y0.

y2=(2/5)x-1 is y0=(2/5)x shifted 1 unit downwards, so line y2 intersepts y-axis at y=-1.   The slope of y2 is equal to that of y0, so line y2 is parallel to line y0, and parallel to line y1 as well.

Therefore, choose the line that intercepts y-axis at y=-1, and parallel to line y= (2/5)x+3. 

Answer 31

I don't think you can.......... unless you know how to do it.