You would just do 4 x 7, which means there are 28 combinations.
y=mx+b is the equation of a line;
m=slope , b= y-intercept
m=4 ; so we have : y=4x+b
We are give a set of points which it passes through, we can simply plug them in:
-2 = 4(3)+b (3 is the x and -2 is the y)
We get -2 = 12 +b .... -14=b
our final equation is : y=4x-14
Answer:
90
Step-by-step explanation:
Hi! :) 19.7 - 6.8 is 12.9. If you need anymore help, ask me!