Zoe writes the coordinate pairs(3,5) and (4,8). she then writes a third coordinate pair, but hides its values. zoe says you can look at it and y-coordinate, but not its x- coordinate. will you be able to tell if the three coordinate pairs represent a function? explain.

Step-by-step explanation:

(3,5) , (4,8) , (x,y)

if u cant see the x coordinate, then u cant tell if it is a function.

A function CANNOT have repeating x values...they can have repeating y values, just not the x ones.

Therefore, if u could see x, u would know right away if it was a functionbut if u can only see ywellthats not enough.

just so you knowthe only way those 3 coordinate pairs could be a function, would be if x was any other number besides 3 or 4because if x was 3 or 4, u would have repeating x values

d. vertex

step-by-step explanation:

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°