Is (0,1) , (1,3) , (2,5), (3,7) a function?

Yes it is a function.

use you can try out the Vertical Line test which states that if your line intersects repeatedly it is not a function.

Every x-value is paired with a y-value. If the x-value is being paired with more than one y-value it does not pass the test.

All these values you had listed pass the vertical line test.

Hope this helps!

Step-by-step explanation:

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

< 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⭐