Answer:
Substitute the values given for f(x) and g(x), in 1. they say f(x)=4x and g(x)=1-x
and basically just substitute them for the functions themselves.
4x+1-x
add like terms!
4x-x = 3x!
3x+1 is your simplified answer, since it is an expression it cannot be simplified any further.
Answer:
The system of equations has one solution. The two equations are intersecting lines.
Step-by-step explanation:
if you want to use the substitution method, you would have to plug in y for 12x+2 in the second equation.
2(12x+2)=x+4
next, you have to distribute
24x+4=x+4
subtract 24x from each side
4=-23x+4
subtract 4 from each side
0=23x
divide each side by 23
x=0
now, plug in 0 to one equation.
y=12(0)+2
y=2
the lines intersect at one point, (0,2)