Determine if the function {(−1, 7), (0, 3), (1, 7), (2, 19)} is quadratic. complete the explanation. it is/isn't a quadratic function. the values at 1 and -1/second differences are the same.

it is

the values at 1 and -1 are the same

hope this helps <3

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

step-by-step explanation: