Write an exponential equation in the form y = abx whose graph passes through points (0, 2) and (1, 1.3)
Accepted Solution
A:
substitute it into eq 2 and solve for a: 25 = ab^2 25 = a(10/a)^2 25 = a(100/a^2) 25 = (100/a) a = 100/25 a = 4 . substitute it into eq 1 and solve for b: 10 = ab 10 = 4b 10/4 = b 2.5 = b write an exponential equation y=ab^x whose graph passes through these points (1,10), (2,25) Hope this helps! ~Nadia~ From:(1,10) 10 = ab^1 10 = ab (equation 1) and from:(2,25) 25 = ab^2 (equation 2) . solve equation 1 for b: 10 = ab 10/a = b