) It is assumed that consumption C depends on income Y and that this relationship takes the form of the linear function C = a + bY. When Y is
GH¢600, C is observed to be GH¢660. When Y is 1,000, C is observed to
be GH¢900. What are the values of a and b in this function? Express C in
terms of Y only. Find the consumption if a family’s income is GH¢1,200

where is the triangle?

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

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.