Substitution
Step 1: Solve for x or y in either of the two equations. In the equations that you are given, y is already solved for you.
Step 2: Plug in 2x + 6 into the opposite equation.
2x + 6 = -3x + 16
- 6 - 6
------------------------------
2x = -3x + 10
+ 3x + 3x
------------------------------
5x = 10
------ ------
5 5
x = 2
Step 3: Plug in the x value into either equation.
y = 2(2) + 6
y = 4 + 6
y = 10
The final answer gets expressed as a coordinate pair: (x,y) (2,10)
I hope this helps you :)
Answer:
c-5
Step-by-step explanation:
Answer:
Step-by-step explanation:
f(x) = a(x-p)(x-9) is the equation of a vertical parabola.
If a>0, the parabola opens upwards.
If a<0, the parabola opens downwards.
Also, the focal length of the parabola is 1/|4a|.
Answer:
c=29/20
d=13/5
Step-by-step explanation:
4c+2d=11 A
7d=82-44c 7d+44c=82 B
The first equation multiply by 11
and we get 44c+22d=121 C
C-B=44c+22d-7d-44c=39
15d=39
d=39/15=13/5
so c= 29/20
