F(2)+g(4)
evaluate them seperately
f(2)=2+2=4
g(4)=10(4)-4
g(4)=40-4
g(4)=36
f(2)+g(4)=4+36=40
Answer:
y= -4x+7
Step-by-step explanation:
The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
Let's find the gradient of the line first.
Using the above formula,
Susbt. m= -4 into the equation:
y= -4x +c
Subst. a coordinate to find c.
When x=3, y= -5,
-5= -4(3) +c
-5= -12 +c
c= 12 -5
c=7
Thus the equation of the line is y= -4x +7.
Correct Option: D) $20.50
Step-by-Step Explanation:
Starting cash = $ 68.00
Balance cash = $ 47.50
We can obtain the amount of money he spent on dinner by subtracting the Balance cash from the Starting cash:
= 68 - 47.50
= 20.50
Therefore, Billy spent $20.50 on Dinner.
Hello,
y=2x+1
x=2y+1 exchange x and y
==>2y=x-1 solve for y
==>y=(x-1)/2
==>y=x/2-1/2
Answer A