Answer:
a
Step-by-step explanation:
Answer:
5x just means 5 times so, 5 times a number(or variable)plus three is less than 7 times a number variable)plus 7
Answer:
Step-by-step explanation:
Pythagoras theorem
a^2=b^2+c^2
(x-2)^2=9^2+(x+1)^2
x^2-4x+4=81+x^2+2x+1
Collect like terms
-4x-2x=82-4
-6x=78
x=-13
The slope is 3.
If you go down the line, -2+3=1 and so on, or subtract (7-4 or 1-(-2)), you will come to the conclusion that the slope is 3.
