7. Use the slope and two points to write a linear function rule for the graph.
y = –2x – 6
y = 2x – 6
y = one halfx – 6
y = one halfx + 6

Question

7.   Use the slope and two points to write a linear function rule for the graph.
y = –2x – 6
y = 2x – 6
y = one halfx – 6
y = one halfx + 6

anonymous · Answer

attachment

anonymous · Answer

@kelliegirl33

xguardians · Answer

y = 2x – 6
The slope is positive since it is going upwards.
2/1 (Rise over Run) = 2

jim766 · Answer

look at the graph and find the slope, the   rise/run

what is the rise from the lower point to the higher one?

anonymous · Answer

find the slope by taking your two points and putting them into the slope formula :
(y2 - y1) / (x2 - x1)

(4,2)...x1 = 4 and y1 = 2
(2,-2)..x2 = 2 and y2 = -2
now we sub
(-2 - 2) / (2 - 4)
-4/-2
2.....the slope is 2

now take either of your points..(4,2)...x = 4 and y = 2
slope(m) = 2
now sub into y = mx + b form
2 = 2(4) + b
2 = 8 + b
2 - 8 = b
-6 = b

so we have : y = 2x - 6