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HELP PLS! Which function rule represents the data in the table below?

HELP PLS! Which function rule represents the data in the table below?-example-1
User Tong Xu
by
8.3k points

2 Answers

11 votes

Answer:

y = 5x - 10

Explanation:

we can express the rule in slope- intercept form

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m =
(y_(2)-y_(1) )/(x_(2)-x_(1) )

with (x₁, y₁ ) = (2, 0) and (x₂, y₂ ) = (1, - 5) ← 2 ordered pairs from the table

m =
(-5-0)/(1-2) =
(-5)/(-1) = 5

the y- intercept is the value of y when x = 0 ⇒ c = - 10

y = - 5x - 10 ← function rule

User Pammy
by
7.8k points
7 votes

Answer:

Y = 5x - 10

Explanation:

we will use the x value (-2) to find its y value

y = 5x - 10

y = 5(-2) - 10

y = - 10 -10

y = -20

Also,we will use the x value (-1) to find its y value

y = 5x -10

y = 5(-1) - 10

y = - 5 - 10

y = -15 ....

User Martin Edlman
by
8.0k points

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