Answer:
A) linear; function
Step-by-step explanation:
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Answer:
The equation of the straight line is 4x +y = 1
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given points are (-1,5) and ( 2,-7)
Slope of the line

slope of the line m = -4
<u><em>Step(ii):-</em></u>
The equation of the straight line passing through the point (-1,5) and having slope 'm' = -4

y - 5 = -4 ( x-(-1))
y -5 = -4 x -4
4 x + y -5 +4=0
4x +y -1 =0
<u><em>Final answer:-</em></u>
The equation of the straight line is 4x +y = 1
<u><em> </em></u>
Answer:
All of them are correct except for number 15
Step-by-step explanation:
Number 15 is D.
Answer:
6
Step-by-step explanation:
Before solve this you've to know that,
( + ) × ( - ) = ( - )
( + ) × ( + ) = ( + )
( - ) × ( - ) = ( + )
Let us solve now.
13 + (-7)
13 - 7
= 6
Hope this helps you :-)
Let me know if you have any other questions :-)
Answer:
Option D. 
Step-by-step explanation:
Let
x -----> the original price of one game
y ----> the original price of one security programs
Remember that


The total pay with discount is

we have that


Find the total pay without discount

The amount saved is the difference
