Plot the intercepts:
y=-1
x=?
to find the x intercept, you dont solve the equation as it is solved in the slope-intercept form. instead, you simply plug in 0 for y:
0=1/4x-4
0=1/4x-4+4
4=1/4x
4/1/4=1/4x
1/4=0.25
x=16
revise:
y=(0, -1)
x=(16,0)
graph the slope for y=-1/2x-1: start from say point (0,-1)
graph the slope for y=1/4x-4: start from say point (16,0) ; you can just ise the intercept (0,-4) since the graph is diluted small...anyways
the points intersect at (4, -3) so thats the solution to the equations
NOTE: when graphing slopes that are negative either the numerator or the denominator can be graphed negative. so I graphed the first equation with the numerator as the positive and the denominator as the negative : rise= 1 ; run: -2. once i got to the end of the provided graph i started from the -1 y-intercept again and graphed the equation using: rise=-1; run=2
*graphing messes me up, too*
Answer:
-1/7=n
Step-by-step explanation:
We can use cross products to solve
5 7
-------- = ------
n+3 4
5*4 = 7*(n+3)
20 = 7*(n+3)
Distribute
20 = 7n+21
subtract 21 from each side
20-21 = 7n+21-21
-1 = 7n
Divide each side by 7
-1/7 = 7n/7
-1/7=n
The answer is: Perpendicular, because both equations intersects or cross over each other. There is an attached photo
Answer:
-115.62
Step-by-step explanation:
bhjka,f
Answer:b=3
Step-by-step explanation:
If a=4b then,
4b-b=9
4(3)-3=9
4x3=12 then - that by 3
So, 12-3=9
Hope that helps