What is the y-value when the x-value is 19?

y = -24.6 or y = -123/5

Step-by-step explanation:

First calculate the slope

slope = rise/run = (-26-(-19))/(20-15) = -7/5

(You can also use points (20, -26) & (25, -33), it should get the same answer)

The standard equation of a line is y = mx + b, where m is slope and b is y-intercept.

Plug in the slope we just got, get ==> y = (-7/5)*x + b

Plug in x = 20 & y -26 ==> -26 = -(7*20)/5 + b ==>b = -26 + 28 = 2

so the equation is y = -7/5x + 2

Finally plug in x = 19 => y = -123/5 = -24.6

answer: d. $20

step-by-step explanation:

just took the test

the answer is b.)

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