Me! i don't have much time to complete the test, and anything . i'll give brainliest when i can! mac drew the line of best fit on the scatter plot shown below: what is the equation of this line of best fit in slope-intercept form? a. y = 2x + 13 over 10b. y = 10 over 13x + 2c. y = 13 over 10x + 2d. y = 2x + 10 over 13

C

Step-by-step explanation:

The equation of a line is y=mx+b where m is slope and b is the y-intercept. the y-intercept is where the line crosses the y-axis which is at (0,2) here so b=2.

The slope is found by finding the difference between any two points on the line. To find the difference, choose two points which cross through two grid lines. The only points on this graph which does that is (0,2) and (10,15). Find the slope by subtracting 15-2 / 10-0. This is equal to 13/10 or 13 over 10.

The equation is y = 13/10 x +2.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.