Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
(1)
Given
y - 3 = - 2(x + 5) ← distribute parenthesis
y - 3 = - 2x - 10 ( add 3 to both sides )
y = - 2x - 7 ← in slope- intercept form
(2)
y = 3x + 5 ← is in slope- intercept form
with slope m = 3
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
, thus
y = -
+ c ← is the partial equation
To find c substitute (3, - 2) into the partial equation
- 2 = - 1 + c ⇒ c = - 2 + 1 = - 1
y = -
x - 1 ← equation of line
Answer:
Step-by-step explanation:
Let h represent the number of hours of babysitting.
C represents the total cost of babysitting for h hours.
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Therefore, the equation would be
C = 5h + 3
Comparing the equation with the slope intercept form, y = mx + c,
The slope = 5
The y intercept = 3
If she babysits for 5 hours, the cost would bee
C = 5 × 5 + 3
C = $28
93.75
just use a calculator
Answer:
Kell makes $8.50 an hour
Kell makes $1.50 more an hour
Add all three money earned by the total hours worked. 8.50
Step-by-step explanation: