Question

Please help.

Answer 1

Use function notation to write the equation of the line.

algebra unit 1 lesson 4 assessment question 1

A.
f (x) = 2x – 1

B.
f (x) = –½x – 1

C.
f (x) = –2x + 1

D.
f (x) = –2x – 1

Answer 2

There is the picture of the graph.

Answer 3

Well you can rule out option C because the y intercept is at -1 :)

Answer 4

ok

Answer 5

Do you know how to find slope?

Answer 6

ya but there are no points

Answer 7

Yes there are! There arent any points that have been made but the line does intersect the graph on certain points! :) look closely. like at (1, -3)

Answer 8

There is also a point at (0,-1) so try and go from (1,-3) to (0,-1). what is the slope that you got?

Answer 9

Yea but how about (1,1) and (-2,3)

Answer 10

Not (1,1) but (-1,1) is a point! and yes (-2,3) is a point too. you can choose any 2 points to find the slope! :)

Answer 11

and if I choose any points, will I get the same answer?

Answer 12

yup! Test it out. what is the slope between (-1,1) and (-2,3)? Then see what the slope is between (1,-3) and (0,-1)

Answer 13

Ok thanx alot!

Answer 14

I mean you cant skip a point, but if you just go from one point to the nearest point you will always get the same slope! Yeah no problem :) the answer should be B :)

Answer 15

BTW i love Rick riordan's books!! i have read the percy series and the kane chronicles and everything! :)