Answer:
6x^5 - 5x^4 + 6x^3 - x^2 + 12x = 31
Explanation:
(-5x^4+6x^3- 43) + (6x^5 -x^2+ 12x+12)= 0
-5x^4 +6x^3-43 + 6x^5 - x^2 + 12x + 12=0
6x^5 - 5x^4 + 6x^3 - x^2 + 12x - 31 = 0
6x^5 - 5x^4 + 6x^3 - x^2 + 12x = 31
Y=-3x+5
Since the slope is -3, you write -3x since x labels the slope. The point is on the y axis giving us the y intercept which is 5.
Answer:
One equation would be y= -1.5x +11
Step-by-step explanation:
Here's a table to show the coordinates
x: y:
8 -1
-------------------
-4 17
the x coor. 8 goes down by 12 to get to the next x coor. -4.
8-12= -4
the y coor. -1 goes up by 18 to get to the next y coor. 17.
-1+18= 17
therefore 18/-12 is -1.5 which can be your k in y=kx+b.
Check your answer.
-1.5*8= -12 but when you add 11, you get the y coor. -1
Do the same with the other x coor.
-4*-1.5= 6 + 11 =17
11 can be your b in the slope-intercept form equation.
One equation may be y = -1.5x +11
When x=0, y=4...
Therefore:
4=a*b⁰
b⁰=1, so a=4.
----------
When x=1, y=2...
Therefore:
2=4*b¹
4b=2
b=2/4
So... b=1/2.
This means that:
y=4*((1/2)^x)
3/4 is the reduced form, also 12/16 is each doubled