Answer:
13
Step-by-step explanation:
Substitute the variables given
w=7 &x=2
3(7)-4(2)
21-8
=13
X/4 - 12 = -18
x/4 -12 +12 = -18 + 12
x/4 = -6
x/4 times 4 = -6 times 4
x = -24
Check
-24 divided by 4 = -6 -12 = -18
Answer:
The x- coordinates are equal at -3.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Quadratic Formula: 
√-1 is imaginary number i
Step 1: Define
y = -3x² + 4.5x - 20
a = -3
b = 4.5
c = -20
Step 2: Substitute and Evaluate






