Answer:
It is therefore a exponential function, as y increases with x.
Step-by-step explanation:
coordinates: ( 7 , 5 ) , ( 16 , 10 )
Slope: 
: 
: 
equation: y - y1 = m( x - x1 )
: 
: 
check if third coordinates matches:

......does not match, so its not linear.
Answer:
9
Step-by-step explanation:
We know that a=1/5. Therefore, we can substitute 1/5 in for a into the expression.
10a + 7
10(1/5)+7 <em>Multiply 1/5 and 10</em>
2+7 <em>Add 2 and 7 </em>
9
There’s no picture so i can’t give an exact answer but their sides would need to be congruent obviously and they both need to have the angle sandwiched by two sides