Helping students gain understanding and self-confidence in algebra.
santaclaus wrote:1. If they say, Slope -4, x-intercept 7,
does this mean that y=-4x+7?
santaclaus wrote:2. Slope 3, y-intercept 8, does this mean y=3x+8?
santaclaus wrote:3. Passes through the points (-1,5) and (2,-1)
would it be possible for me to state y=3x-6?
santaclaus wrote:4. Slope 2/3 and passes through the point (5, 7)
does this mean y=2/3x +7?
santaclaus wrote:5. Has x-intercept 3 and y-intercept -5
does this mean y=3x-5?
santaclaus wrote:6. Slope 0.1, passes through (-0.1, 0.02)
does this mean y=0.1x+0.02?
santaclaus wrote:7.Function f has f(0.3)=0.8 and f(0.8)=-0.4
I have no idea what this means -
santaclaus wrote:8. Function f has f(-2)=7 and f(3)=-3
what does this mean? do I have to input -2 as a value of x? and -3 as a value of x? how do I get my y values and how do I create a formula for this linear function.
santaclaus wrote:so basically, if they want you to find an equation going through points given, whether its 1 or 2 points, I must first find the b or y-intercept and then plug any of the points back into the equation?