Question

Hey yall!! How do I do this ???

Answer 1

Explanation:

just pick three values (numbers) into the function and calculate the other unknown

You can pick an X or you can pick a Y, then solve for Y or X respectively.

Record these x,y pairs in the table

once you have at least two points you can graph the function

y = mx + b y-intercept form of the line function

m = slope b is the value of y when x = 0

y = -5x/2 -5 let x = 0 solve for y

y = -5(0)/2 -5

y = 0 - 5

y = -5

y = -5x/2 -5 solve for x

y + 5 = -5x/2 - 5 + 5 add 5 to both sides

y + 5 = - 5x/2

(y +5 )(-2/5) = (-5x/2) (-2/5)

(y +5 )(-2/5) = x let y = 0

(0) +5)(-2/5) = x

5(-2/5) = x

-2 = x

I'll let you have the third variable to pick and solve for the dependent variable. The dependent variable is just wha it sounds like, it is dependent on which ever independent (the value you randomly pick) variable.

Pick either x or y then solve for y or x

y = -5x/2 -5 solve for y

x = (-2/5) (y +5) solve for x

Answer 2

put the y= equation into a calculator and then click graph and then after you see the graph , click 2nd and then graph to get the coordinates