Question

Slope from graph
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Vale 10 puntos

Answer 1

Answer:y=2x-2

Explanation:

y=mx+b

this is the equation for a line

m is the slope

b is where the line crosses the y-axis. AKA, y-intercept

in this case, b is 2. We can see this because when the x value is 0 (also when the line crosses the y-axis), the y value is 2. Look at the number on the y-axis that the line crosses over.

m, or slope is a little bit harder to figure out.

to find the slope we need to remember a formula- m=(change in y/change in x)

in this case, we have two points. (0,2)-y-intercept (1,0) x-intercept. so now all we have to do is figure out the change in x and the change in y. we can see that x goes up one, and y goes down 2. so then we now have

m=(-2/1)

simplified to- m=-2

slope = -2

Answer 2

-2

use rise over run

Explanation:

pick 2 points and count how many points vertically it took to get to the second point and horizontally to get to the second point. and if the line is going up then it is positive and if it is going down then it is negative

2 point from this graph were (0,2) and (1,0)

it took 2 lines down and one across to get to (1,0) and since the line is pointed downward it is negative

rise/run

sorry if this doesn't make sense i'm not the best at explaining things