It would be 10 to the right when you add from 0
Answer:
sales tax = $3.9
total cost = $68.9
Step-by-step explanation:
tax = 65*0.06 = 3.9
total cost = 3.9 + 65 = 68.9
Answer:
y = - 3x + 17
Step-by-step explanation:
Note that slope is a measure of the rate of change of a linear function.
Express the function in slope- intercept form
y = mx + c ( m is the slope and c the y- intercept )
here m = - 3, thus
y = - 3x + c ← is the partial equation
To find c substitute (5, 2) into the partial function
2 = - 15 + c ⇒ c = 2 + 15 = 17
y = - 3x + 17 ← is the linear function
For the points in the parabola, we have:
- A = (1, 0)
- B = (3, 0)
- P = (0, 3)
- Q = (2, -1).
<h3>
How to identify the points on the parabola?</h3>
Here we have the quadratic equation:
y = (x - 1)*(x - 3)
First, we want the coordinates of A and B, which are the two zeros of the parabola.
Because it is already factorized, we know that the zeros are at x = 1 and x = 3, so the coordinates of A and B are:
A = (1, 0)
B = (3, 0).
Then point P is the y-intercept, to get it, we need to evaluate in x = 0.
y = (0 - 1)*(0 - 3) = (-1)*(-3) = 3
Then we have:
P = (0, 3)
Finally, point Q is the vertex. The x-value of the vertex is in the middle between the two zeros, so the vertex is at x = 2.
And the y-value of the vertex is:
y = (2 - 1)*(2 - 3) = 1*(-1) = -1
So we have:
Q = (2, -1).
If you want to learn more about quadratic equations:
brainly.com/question/1214333
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