Need help with this ( finding slope ) plz

see explanation

Step-by-step explanation:

Calculate the slope m using the slope formula

m =

with (x₁, y₁ ) = (0, 340) and (x₂, y₂ ) = (4, 292) ← 2 ordered pairs from table

m = = = - 12

(0, 340 ) → gives the y- intercept b = 340

The equation is of the form

y = mx + b ( m is the slope and b the y- intercept ), thus

y = - 12x + 340

x=6 and x=3

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