Answer:
y = 2x + 15
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 )
here m = 2 , then
y = 2x + c ← is the partial equation
to find c substitute (- 4, 7 ) into the partial equation
7 = - 8 + c ⇒ c = 7 + 8 = 15
y = 2x + 15 ← equation of line
No, it’s not a linear equation.
Answer:
(2x+7t) (5x-3p)
Step-by-step explanation:
The cost is £79.76. Since the car covers 560 miles and 34.5 miles is travelled by one gallon. So, dividing 560 by 34.5 we get 16.23. Since 1 gallon is 4.55 litres, 16.23 gallons is 73.8465. Now the cost of petrol is £1.08 per litre. So, multiplying 73.8465 by £1.08 we have £79.76
