SOLUTION: Graph the following; calculate the slope, x-intercept and y-intercept and label the intercepts on a graph. 4.2x+3.8y=1.9 Thanks!

Algebra ->  Linear-equations -> SOLUTION: Graph the following; calculate the slope, x-intercept and y-intercept and label the intercepts on a graph. 4.2x+3.8y=1.9 Thanks!      Log On


   

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
Thanks!
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
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%28y=mx%2Bb%29, where m=slope and (0,b)=y-intercept
4.2x%2B3.8y=1.9
-4.2x%2B4.2x%2B3.8y=-4.2x%2B1.9
3.8y=-4.2x%2B1.9
3.8y%2F3.8=-4.2x%2F3.8%2B1.9%2F3.8
y=%28-4.2%2F3.8%29x%2B.5
y=-1.0526x%2B.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%28300%2C200%2C-10%2C10%2C-10%2C10%2C%28-4.2%2F3.8%29x%2B.5%29
Happy Calculating!!!