Mark has 15 coins in dimes and quarters valuing $2.10 how many dimes does he have? A 4
B 10
C 9
D 11

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

i think the answer is seven, for if i'm being useless °ω°

step-by-step explanation:

answer: c. is your answer

step-by-step explanation: get me a black leather coat