A, B & C lie on a straight line. D, C & Elie on a different straight line.
Angle y = 100° and angle 2 = 64°.
Work out I, explaining each stage of your working in the comment box.
7
А
B
The diagram is not drawn accurately

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex