Answer:
y=-x+3
Step-by-step explanation:
The general slope-intercept equation of a line is y=mx+b where m is the slope and b represents the y intercept. y and x are simply a point the line passes through. In this case, y=x-5, meaning m=1 and b=-5.
In order to find the perpendicular slope, we should take the current slope's <u>negative reciprocal</u>. We have:

Therefore, our perpendicular slope is -1. We now have equation:

We can plug in the known values of the point (-1,4) to solve for b.

If we now put what we found together, we have equation

<em>I hope this helps! Let me know if you have any further questions :)</em>
Answer:
Correct expression: 85 + 0.06(t - 400)
Correct earnings: $91
Step-by-step explanation:
The expression Joan wrote is incorrect because instead, $85, she put $400 as her base salary. The correct expression would be 85 + 0.06(t - 400), where 85 is her base pay in dollars, and t - 400 represents her sales in dollars exceeding $400.
If Joan's sales were $500, she would not make $424.90, but
85 + 0.06(t - 400)
85 + 0.06(500 - 400)
85 + 0.06(100)
85 + 6
$91
Hope this helps.
Cheers,
Andy
9. -7/12
10. -2.75
11. 1.844
12. 4.539
Answer:X=13/145
Step-by-step explanation:
9x-5, I guess, not sure, but I'm combining like terms. Hope it's right.