Answer:
270 cm^2
Step-by-step explanation:
area of atriangle =base*height/2
=30 cm * 18 cm/2
=540 cm^2/2
=270 cm^2
Normally it is x ininput and f(x)=y
solve for y and replace y with f(x)
minus 5x from both sides
2y=10-5x
divide both sides by 2
y=5-2.5x
f(x)=5-2.5x
There are an infinite number of solutions. Any value can be used
for the variable 'x'. Each one produces a value for 'y', and together,
they make a true equation.
When this equation is drawn on a graph, the graph is a straight line
with no end in either direction. EVERY POINT on the line is a solution
to the equation ... a pair of numbers for 'x' and 'y' ... and you know how
many points there are on a line, don't you ?
Answer: What do you mean?
Is this even correct question?