Question 55929
Graph the following; calculate the slope, x-intercept and y-intercept and label the intercepts on a graph.
4.2x+3.8y=1.9

To find the slope put the equation in slope intercept form: {{{highlight(y=mx+b)}}}, where m=slope and (0,b)=y-intercept
{{{4.2x+3.8y=1.9}}}
{{{-4.2x+4.2x+3.8y=-4.2x+1.9}}}
{{{3.8y=-4.2x+1.9}}}
{{{3.8y/3.8=-4.2x/3.8+1.9/3.8}}}
{{{y=(-4.2/3.8)x+.5}}}
{{{y=-1.0526x+.5}}}
The slope m= -4.2/3.8 or approximately -1.0526
The y intercept is (0,b)=(0,.5)
The x intercept is found by letting y = 0 and solving for x.
0=-1.052x+.5
0-.5=-1.052x
-.5/-1.052=-1.052x/-1.052
x= approximately .47528
Plot your x and y intecepts and connect the dots.
{{{graph(300,200,-10,10,-10,10,(-4.2/3.8)x+.5)}}}
Happy Calculating!!!