Two previos numbers of <em>n</em><em> </em> are <em>(</em><em> </em><em>n</em><em> </em><em>-</em><em> </em><em>1</em><em> </em><em>)</em><em> </em> and <em>(</em><em> </em><em>n</em><em> </em><em>-</em><em> </em><em>2</em><em> </em><em>)</em><em> </em><em> </em>Thus :
( n - 2) + ( n - 1 ) + n = 3n - 3
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:
-44/5 = a
Step-by-step explanation:
- 26 = 8 + 5(a + 2)
Subtract 8 from each side
- 26-8 = 8-8 + 5(a + 2)
-34 = 5(a +2)
Distribute
-34 = 5a +10
Subtract 10 from each side
-34-10 = 5a +10-10
-44 = 5a
Doivide each side by 5
-44/5 = 5a/5
-44/5 = a