Question

Please answer this below

Answer 1

We need to find the slope to find the answer.
$\sf{Slope=\frac{y_2-y_1}{x_2-x_1}= \frac{1375-900}{2-1} = \frac{475}{1} =\boxed{\bf{475}}}$

y = 475x + b

(1,900)

900 = 475(1) + b
900 = 475 + b
b = 900 - 475
b = 425

Your answer is $425.