Answer:
Choice #4
Step-by-step explanation:
In order to find the y-intercept you have to plug in 0 for x in the equation, so:
f(0) = -1.4(0) - 15
When you solve, you would get y-intercept = -15
In order to find the x-intercept you have to set the equation equal to 0, so:
0 = -1.4x - 15
Solve for x and you would get -10.714...
f(15) = -1.4(15) - 15
f(15) = -36
-1.4x - 15 = 12.44
Add 15 to both sides
-1.4x = 27.44
Divide both sides by -1.4
x = -19.6
Answer:
4
Step-by-step explanation:
25% is the same as 1/4.
1 is 1/4 of what number?
Answer: 4
You can also answer it with an equation.
Let x = the number you are looking for.
1 is 25% of x can be written as the following equation.
25% of x = 1
0.25x = 1
Multiply both sides by 4.
x = 4
Answer: 4
Answer:
y=5x-2
Step-by-step explanation:
plug the numbers into y=mx+c where m is the gradient (or slope) and c is the y-intercept