Plwhich function is described by the values in the table?

Y= -x+9 is the answer,
Because f(1)= -1+9=8
f(3)=-3+9=6 and etc

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!