B I think please give me brainliest
Answer:
-12x^2+46x-6
Step-by-step explanation:
combine like tens and subtract then from eachother
Y=2x+6
gradient is found from the formula,

y intercept is found by subbing the values of (-1,4) into the equation y=2x+c
19.4 added to 24.2 would be 43.6
ANSWER: 43.6