SOLUTION: 12. Find the slope of the graph of the equation y = 3x - 4 13. Find the slope of the graph of the equation -4x + 2y = -10 14. Find the x and y intercepts of the graph of the equ

Algebra ->  Coordinate-system -> SOLUTION: 12. Find the slope of the graph of the equation y = 3x - 4 13. Find the slope of the graph of the equation -4x + 2y = -10 14. Find the x and y intercepts of the graph of the equ      Log On


   

Question 1049844: 12. Find the slope of the graph of the equation y = 3x - 4
13. Find the slope of the graph of the equation -4x + 2y = -10
14. Find the x and y intercepts of the graph of the equation -3x + 2y = 78. Find the intercepts algebraically and show your work on your work paper.
15. Find the x and y intercepts of the given graph in number 7.
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
Only your numbers 14 and 13.

#14:
2y=3x%2B78
y=%283%2F2%29x%2B39
SLOPE IS 3%2F2.
-
Be aware of slope-intercept equation form for a line.
y=mx+b
Slope is m.
-
Axis Intercepts:
You will soon learn to read the equation in the slope-intercept form and find the y-intercept to be (0,39).
An equation of the form y=mx+b has y-intercept b.
Let y=0 and solve for x...
y=%283%2F2%29x%2B39
%283%2F2%29x%2B39=0
x=39%282%2F3%29
x=26
The x intercept is (26,0).
-
graph%28500%2C500%2C-40%2C2%2C-2%2C40%2C3x%2F2%2B39%29


#13:
2y=4x-10
y=2x-5
SLOPE IS 2
-
Again be able to use and understand the slope-intercept equation of a line.


You can solve #12 just by inspecting the equation.