<h3>
Answer: It's a linear equation.</h3><h3>It's not a proportional relationship.</h3><h3>Juanita spend $63 on groceries if she spent $30 on transportation.</h3>
Step-by-step explanation: Given equation y=2x+3.
Where x is the amount she spends on transportation, and y is the amount she spends on groceries.
<em>We can see that given equation is in slope-intercept form y=mx+b.</em>
So, it's a linear equation and y=2x+3 is the relationship between x and y linear.
<em>Also, a linear linear equation represents a proportion relationship if y-intercept is 0.</em>
But for the given equation y=2x+3, y-intercept is 3.
Therefore, it's not a proportional relationship.
Now, in order to find how much would Juanita spend on groceries if she spent $30 on transportation, we need to plug x= 30 in given equation.
Therefore,
y = 2(30) +3 = 60+3 = 63.
<h3>So, Juanita spend $63 on groceries if she spent $30 on transportation.</h3>
, we get 
and 
, so we can parameterize the intersection by
.