Answer:
Not a solution
Step-by-step explanation:
To determine if a pair of coordinates is the solution to an equation, just plug it in.
Given that the equation is:
y = 19x - 2
And the coordinates they give us to evaluate:
(6, 4)
Plug the coordinates in:
y = 19x - 2
4 = 19(6) - 2
4 = 114 - 2
4 = 112
4 ≠ 112
4 is not equal to 112. Therefore this pair is not the solution.
Explanation
The point (6,4) tells us that x = 6 and y = 4 pair up together.
Plug those values into the equation. Simplify both sides as much as possible (use PEMDAS). If we get the same thing on both sides, then that point is a solution to the equation.
y = 19x - 2
4 = 19*6 - 2
4 = 114 - 2
4 = 112
We get different values on each side. Therefore, the point (6,4) is not a solution to the equation.
Another approach you could do is graph the equation using a tool like Desmos. GeoGebra works as well. The point (6,4) is not on the diagonal line. Check out the diagram below to see what I mean.
A.$50.17
B.$39.00
C.$29.72
D.$10.00
Answer:
y = x - 1
Step-by-step explanation:
Lines that are parallel have the same slope. The slope of the given equation is 1. This means that the new equation will also have a slope of 1.
Use the point-slope form to find the equation with the given point and slope.
y - y₁ = m(x - x₁)
y - 2 = 1(x - 3)
y - 2 = x - 3
(y - 2) + 2 = (x - 3) + 2
y = x - 1
175/12 = 14.58 or 15 cheesecakes
Explanation
Thus, you have 175 visitors. = 175gst
12 GST for one cheesecakes
A ratio should be set up so that the units cancel.
1 cheesecakes x 175gst c
————————
12 gst
Here, the GST is cancelled, leaving you with cheese cake, making 175/12 equal to 14.58 or 15.
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