We know m = 5, x = 3, and y = -2, and that the point slope form is y = mx + b, so plugging these in we can solve for b;
-2 = 5 * 3 + b
-2 = 15 + b
b = -17
So the equation for the line would be;
y = 5x - 17
b is the y intercept, so that is answered (0,-17), to solve for the x intercept you have to plug 0 in for y in the equation, so;
0 = 5x - 17
17 = 5x
x = 17/5
So the x intercept would be (17/5,0)
The answer is obvious that is option B, however for educational purposes we will graph the different cases
using a graph tool
see the attached figure
case A-------> is a parabola is not a straight line
case B-------> is a straight line
case C-------> there are two straight line
case D-------> is a circle is not a straight line
hence
the answer is the optionB.f(x) = x + 1
Answer:
Q4
●-4
●2
Q5
a) f(x) = 18x if x≤5
6x+90 if x>5
b) 150
c)
Step-by-step explanation:
The answer will be: Y = -2/5x - 4
Slope intercept form: y= Mx+b
You find the slope (M) using: rise/run formula
You find (b) by looking at the y-intercept
Answer:
Answer
Step-by-step explanation:
here