What are the slope and y-intercept of the line?

Question

asked Mar 18, 2022 171k views

1 Answer

Leigh Caldwell · Answer 1 · 2022-03-23T04:30:12+0000

slope = -170. y-intercept = 1020

Explanation:

Let
P_1(0, 1020) and
P_2(6, 0). The slope can be calculated as

$m = (0 - 1020)/(6 - 0) = -170\:\text{m/hr}$

So the equation can be written as

y = -170x + b

To solve for b, let's use the values for P2:

$0 = -170(6) + b \Rightarrow b = 1020$

Therefore,

y = -170x + 1020

To find the y-intercept, let x = 0. then the y-intercept is

y = -170(0) + 1020

or

(0, 1020).