NEED HELP! A line has a slope of 9/7 and a y-intercept of 1/3. Which of the following is an equation of the line? A 27x - 21y = -7

B 27x + 21y = 1

C 9x + 7y = 3

D 7x - 9y = -3

Please show work so I could understand this!

A

Step-by-step explanation:

Take a look at the slope-intercept form of the equation .

Slope of 9/7 and y-intercept of 1/3 means replace m which is slope and c is the y-intercept which becomes

now we take LCM of 7 and 3 which becomes

and then,

so A is our Answer

if arrange the equation accordingly

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

sas (side angle side)

aa (angle angle)

sss(side side side)

sas find two sides with an angle in between

aa is finding two angles and the third will add up to 180

sss find all sides

step-by-step explanation: