## anonymous one year ago Which of the following functions is best represented by the scatter plot? 1) f(x) = 9 − 10.3x 2) f(x) = −10.3 + 9x 3) f(x) = −9 + 10.3x 4) f(x) = 10.3 − 9x

1. anonymous

The scatter plot below shows the relationship between the length (x), in meters, and mass f(x), in kg, of a marine animal:

2. Astrophysics

Note the equations are y = mx+b form, and it's increasing so we can eliminate both equations with negative slopes. Slope in this equation is represented by m, and y - intercept is b.

3. Astrophysics

You can find the slope or use intercepts to find the equation, for slope pick two random points on the line and use $m = \frac{ y_{2}-y _{1} }{ x _{2}-x _{1} }$ or you can find x and y intercept and compare it to the graph. To find x intercept, let y = 0 and solve for x, to find y intercept, let x = 0 and solve for y.

4. Astrophysics

Thanks @Elsa213 I was unable to msg you back because of your settings :-)

5. anonymous

6. Astrophysics