Answer:
Answer is option B
Step-by-step explanation:
initial $25, add on the 7%, then also add on the 15% tip... comes out to
<u>7% of 25= 1.75</u>
<u />
<u>15% of 25= 3.75</u>
<u />
<u>= 30.5</u>
The "rule" being described here is nothing more than the input/output of a mathematical function.
For every input 'x' value supplied, you only need to subtract three to it. For every input 'y' value, you only need to add four to it.
Example: I'll use variable 'm' to represent this function. Variable 'p' will represent the current input point.
m(p) = p[x - 3, y + 4] = p[-7 - 3, 0 + 4] = p[-10, 4]. 'p[]" is just the point.
I tried my best hope that help!
Answer:
Your parents took your family out to dinner. Your parents wanted to give the waiter a 15% tip. If
the total amount of the dinner was $42.00, what should be paid to the waiter
Step-by-step explanation:
y = (-4/9)x + 3
-4/9 is the slope of the line. the factor is x is the slope in every line equation. the slope is always the ratio y/x.
the parallel line must have the same slope, of course.
but the y-intercept will be different.
so, its line equation looks like
y = (-4/9)x + c
we use the provided point coordinates to calculate this c.
4 = (-4/9)×9 + c
4 = -4 + c
c = 8
therefore, the parallel line equation is
y = (-4/9) + 8
a perpendicular line is a line that intercepts the original line by an angle of 90 degrees.
that means that its slope switches the original x and y, and also flips the sign.
the perpendicular slope is therefore : 9/4
so, the line equation looks like
y = (9/4)x + c
again, we use the provided point coordinates to calculate c :
4 = (9/4)×9 + c
4 = 81/4 + c
16/4 = 81/4 + c
-65/4 = c
the perpendicular line equation is
y = (9/4)x - 65/4
Answer:
1/a
Step-by-step explanation: