ABC and ACD are triangles. k is a constant,

(1)

a) Work out CD

8a+45

А

8a - 76

ka

3b

b) BCD is a straight line.

Work out the value of k.

You must show your working. (3)

ka+8a+7b

B

D

С

Total marks: 4

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Are the corresponding angles congruent? explain why or why not.

*15 pts* the graph of an exponential function of the form y = f(x) = ax passes through the points and the graph lies the x-axis. first line choices: (0, a) (0, 1) (0, 2) (0, -1) second line choices: (1, 0) (1, a) (1, 1) (1, -2) third line choices: above below on the