Find lopes of lines in he following figures

Question

anonymous · Answer

attachment

anonymous · Answer

Find the slopes of the following figures

anonymous · Answer

@ganeshie8

anonymous · Answer

Can you please help i'm unable to understand the graph format

ganeshie8 · Answer

knw the definition of `slope` ?

anonymous · Answer

rate of change of angle 
y=mx+c

ganeshie8 · Answer

yes, but we use below :

$\large \text{slope} =  \dfrac{\text{rise}}{\text{run}}$

ganeshie8 · Answer

cuz it works well when u deal wid graphs

ganeshie8 · Answer

Look at the first graph

ganeshie8 · Answer

where is it cutting the y axis ?

anonymous · Answer

-2,1 and 4

ganeshie8 · Answer

not sure what u mean, but if u look at it, it is cutting the y axis 2 grids below that thick horizontal axis.

ganeshie8 · Answer

attachment

ganeshie8 · Answer

and after running right for 1 grid, the line is rising up by 3 grids :

$\large \text{slope} =  \dfrac{\text{rise}}{\text{run}} = \dfrac{3}{1}  = 3$

ganeshie8 · Answer

go thru this : http://coolmath.com/algebra/08-lines/05-finding-slope-line-from-graph-01.htm

ganeshie8 · Answer

leme knw if u have any questions :)

ganeshie8 · Answer

just watch this awesome short video : https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/slope-and-intercepts/v/slope-of-a-line

anonymous · Answer

can you make this same graph in calculator

anonymous · Answer

i mean demos calculator

ganeshie8 · Answer

you can write the equation once u have the slope :

$\large y = mx + b$

since  slope  = $m$ = 2
and y intercept  = $b$ = -2,

the equation of line would be :
$\large y = 2x - 2$

ganeshie8 · Answer

enter that in desmos, you will get the line in first graph

anonymous · Answer

can you help with the second

ganeshie8 · Answer

sure, tell me below :
1) where is the line cutting the `y axis` ?

anonymous · Answer

i mean the first graph that i had drawn can you help me in making it on demos calculator

ganeshie8 · Answer

for the first graph, just enter `y = 2x - 2` into desmos

anonymous · Answer

im not getting the same graph

ganeshie8 · Answer

sorry i made a mistake

ganeshie8 · Answer

we got the slope = $\color{Red}{3}$ , not 2, so the equation wud be :

$\large y = \color{red}{3}x - 2$

ganeshie8 · Answer

try that and see^

anonymous · Answer

i think this one is right 
i dont know how can we reduce the boxes in the graph  of demos calculator

anonymous · Answer

@ganeshie8

anonymous · Answer

Can you help