£13000 is invested at 5% compound interest per annum. What is the total interest earned after 4 years?

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Aline passes through 3,7 and 6,9 what equation represents the line