Answer:
Vertex plot is (1,4)
and
second plot point (0,6)
Step-by-step explanation:
You can use the the desmos graph calculator by entering quadratic function f(x) = 2x^2 − 4x + 6
15%=0.15
6000×0.15=900
He paid $900 (15% of $6000; 6000×0.15=900)
$6000-$900= $5100
and he still have to pay $5100
15x - 30 = 105 is the mathematical statement
The range is 0 to indifinity