Which of the following functions is graphed below? Please help im taking a super hard test

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!

If two angles are complementary, which is the sum of their measurements? a. 45o b. 90o c. 120o d. 180o