Question

What is the equation of this line of best fit in slope-intercept form?
y=-6x+3/4
y=6x+3/4
y=-3/4x+6
y=3/4x+6

Answer 1

WILL MEDAL AND FAN @iGreen

Answer 2

What's the y-intercept?

Answer 3

6?

Answer 4

Yep!

y = mx + b

Where 'm' is the slope and 'b' is the y-intercept, so we have:

y = mx + 6

So our answers can only be C or D.

Answer 5

is it D?

Answer 6

Now let's find the slope.

Take any two points on the line.

Let's take (0, 6) and (4, 3)

Plug them into the slope-formula:

\(\sf m = \dfrac{y_2-y_1}{x_2-x_1}\)

\(\sf m = \dfrac{3-6}{4-0}\)

Simplify

Answer 7

CCCC!

Answer 8

Yep!

3 - 6 = -3
4 - 0 = 4

-3/4

So the slope is -3/4

So our final equation is:

y = mx + 6

y = -3/4x + 6