We want to identify the value of the base of the from the given graph.
Let's consider the given equation for this graph.
y=bx
Let's first substitute the given point which has
1 as its
x-coordinate into the above formula. This will allow us to find the value of
b. Let's substitute
(1,3) into the above formula.
Now we can write our equation.
y=bx⇒y=3x
Next, we will substitute other given points,
(0,1) and
(-1,31), into the above equation to check it. Let's start from
(0,1).
The second point satisfies the equation. Let's try the last one,
(-1,31).
y=3x
31=3-1
31=311
31=31
All the given points satisfy the equation. Now we can be sure that
b=3.