Step-by-step explanation:
the slope of a line is always the factor of x.
here : 1/2
it is the ratio y/x indicating how many units y changes, when x changes a certain angina amount of units when going from one point to another.
a perpendicular slope puts x and y upside-down and flips the sign.
here : -2/1 = -2
so, the equation looks like
y = -2x + b
b is the y-intercept, and we get this by putting the x and y coordinates of the given point into this equation and solve for b :
-1 = -2×-2 + b
-1 = 4 + b
b = -5
the full equation is therefore
y = -2x - 5
Answer:
-11
Step-by-step explanation:
Answer:
238
Step-by-step explanation:
28÷4=7
7x6=42
7x3=21
7x4=28
7x7=49
7x3=21
7x3=21
7x4=28
(28x3)+(21x3)+49+42
84+(21x3)+49+42
84+63+49+42
147+49+42
147+91
238
Answer:
Step-by-step explanation:
Match the circles on the left with circles on the right. Divide any remaining circles evenly between the remaining squares. See below for one way to do this.