Answer:
Yes.
Step-by-step explanation:
The x and y values are the same. The equation states that x and y have the same value.
The point (3, 3) satisfies the equation y = x.
Hope this helps.
<h3>
Answer:</h3>
<h3>
Step-by-step explanation:</h3>
A) Let's first consider the effect of the tax:
total payment = (food cost) + 25% × (food cost) = (1 + 0.25)×(food cost)
If the cost of a sandwich is x dollars, the cost of 6 sandwiches will be 6 times that, or 6x dollars. When the $2 cost of the soda is added, we get ...
food cost = 2 + 6x
Putting this into the equation for total payment, we find the expression to be ...
total payment = 1.25(2 +6x)
_____
B) Evaluating the expression for part A with x=5, we get ...
total payment = 1.25(2 +6·5) = 1.25·32 = 40 . . . . dollars
The answer is
C. (x+3)(5x2-2)
Answer:
y = -2x - 9
Step-by-step explanation:
so we have our two points, (-4,-1) and (-8,7) What we need to do to find our slope is y2 - y1 over x2 - x1. Once plugging in the numbers and subtracting it should give you 8/-4. 8 divided by -4 is -2. m = -2. Now to find our "b" we plug in our slope, and plug in one of the two points into the format of y = mx + b.
-1 = -2(-4) + b
multiply -2 and -4
-1 = 8 + b
we subtract 8 from itself and -1
-9 = b
Our equation is y = -2x - 9
